ext: hal: nordic: Add missing nordic header file needed by nrf_power.h
While importing the nrf_power.h to use the nrf_power_resetreas_get()
function the missing header file error was presented.
Origin: Nordic SDK 12.2.0 (components/drivers_nrf/hal)
URL: http://developer.nordicsemi.com/nRF5_SDK/
License: 3-clause BSD
Maintained-by: External
Signed-off-by: Flavio Arieta Netto <flavio@exati.com.br>
Signed-off-by: flavio <flavio@exati.com.br>
diff --git a/ext/hal/nordic/hal/nordic_common.h b/ext/hal/nordic/hal/nordic_common.h
new file mode 100644
index 0000000..7038ea4
--- /dev/null
+++ b/ext/hal/nordic/hal/nordic_common.h
@@ -0,0 +1,107 @@
+/* Copyright (c) 2008 Nordic Semiconductor. All Rights Reserved.
+ *
+ * The information contained herein is property of Nordic Semiconductor ASA.
+ * Terms and conditions of usage are described in detail in NORDIC
+ * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
+ *
+ * Licensees are granted free, non-transferable use of the information. NO
+ * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
+ * the file.
+ */
+
+/** @file
+ * @brief Common defines and macros for firmware developed by Nordic Semiconductor.
+ */
+
+#ifndef NORDIC_COMMON_H__
+#define NORDIC_COMMON_H__
+
+/** The upper 8 bits of a 32 bit value */
+//lint -emacro(572,MSB) // Suppress warning 572 "Excessive shift value"
+#define MSB(a) (((a) & 0xFF000000) >> 24)
+/** The lower 8 bits (of a 32 bit value) */
+#define LSB(a) ((a) & 0x000000FF)
+
+/** The upper 8 bits of a 16 bit value */
+//lint -emacro(572,MSB_16) // Suppress warning 572 "Excessive shift value"
+#define MSB_16(a) (((a) & 0xFF00) >> 8)
+/** The lower 8 bits (of a 16 bit value) */
+#define LSB_16(a) ((a) & 0x00FF)
+
+/** Leaves the minimum of the two 32-bit arguments */
+/*lint -emacro(506, MIN) */ /* Suppress "Constant value Boolean */
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+/** Leaves the maximum of the two 32-bit arguments */
+/*lint -emacro(506, MAX) */ /* Suppress "Constant value Boolean */
+#define MAX(a, b) ((a) < (b) ? (b) : (a))
+
+/** Concatenates two parameters. Useful as a second level of indirection,
+ * when a parameter can be macro itself. */
+#define CONCAT_2(p1, p2) p1##p2
+/** Concatenates three parameters. Useful as a second level of indirection,
+ * when a parameter can be macro itself. */
+#define CONCAT_3(p1, p2, p3) p1##p2##p3
+
+/**@brief Set a bit in the uint32 word.
+ *
+ * @param[in] W Word whose bit is being set.
+ * @param[in] B Bit number in the word to be set.
+ */
+#define SET_BIT(W,B) ((W) |= (uint32_t)(1U << (B)))
+
+
+/**@brief Clears a bit in the uint32 word.
+ *
+ * @param[in] W Word whose bit is to be cleared.
+ * @param[in] B Bit number in the word to be cleared.
+ */
+#define CLR_BIT(W, B) ((W) &= (~((uint32_t)1 << (B))))
+
+
+/**@brief Checks if a bit is set.
+ *
+ * @param[in] W Word whose bit is to be checked.
+ * @param[in] B Bit number in the word to be checked.
+ *
+ * @retval 1 if bit is set.
+ * @retval 0 if bit is not set.
+ */
+#define IS_SET(W,B) (((W) >> (B)) & 1)
+
+#define BIT_0 0x01 /**< The value of bit 0 */
+#define BIT_1 0x02 /**< The value of bit 1 */
+#define BIT_2 0x04 /**< The value of bit 2 */
+#define BIT_3 0x08 /**< The value of bit 3 */
+#define BIT_4 0x10 /**< The value of bit 4 */
+#define BIT_5 0x20 /**< The value of bit 5 */
+#define BIT_6 0x40 /**< The value of bit 6 */
+#define BIT_7 0x80 /**< The value of bit 7 */
+#define BIT_8 0x0100 /**< The value of bit 8 */
+#define BIT_9 0x0200 /**< The value of bit 9 */
+#define BIT_10 0x0400 /**< The value of bit 10 */
+#define BIT_11 0x0800 /**< The value of bit 11 */
+#define BIT_12 0x1000 /**< The value of bit 12 */
+#define BIT_13 0x2000 /**< The value of bit 13 */
+#define BIT_14 0x4000 /**< The value of bit 14 */
+#define BIT_15 0x8000 /**< The value of bit 15 */
+#define BIT_16 0x00010000 /**< The value of bit 16 */
+#define BIT_17 0x00020000 /**< The value of bit 17 */
+#define BIT_18 0x00040000 /**< The value of bit 18 */
+#define BIT_19 0x00080000 /**< The value of bit 19 */
+#define BIT_20 0x00100000 /**< The value of bit 20 */
+#define BIT_21 0x00200000 /**< The value of bit 21 */
+#define BIT_22 0x00400000 /**< The value of bit 22 */
+#define BIT_23 0x00800000 /**< The value of bit 23 */
+#define BIT_24 0x01000000 /**< The value of bit 24 */
+#define BIT_25 0x02000000 /**< The value of bit 25 */
+#define BIT_26 0x04000000 /**< The value of bit 26 */
+#define BIT_27 0x08000000 /**< The value of bit 27 */
+#define BIT_28 0x10000000 /**< The value of bit 28 */
+#define BIT_29 0x20000000 /**< The value of bit 29 */
+#define BIT_30 0x40000000 /**< The value of bit 30 */
+#define BIT_31 0x80000000 /**< The value of bit 31 */
+
+#define UNUSED_VARIABLE(X) ((void)(X))
+#define UNUSED_PARAMETER(X) UNUSED_VARIABLE(X)
+
+#endif // NORDIC_COMMON_H__
