Kconfig symbols for drivers directory.

This commit adds the Kconfig files that describe the CONFIG
symbols that belongs to the drivers directory and subdirectories.

Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
Change-Id: I924835ece11a3d597e77a55ace21d724dd5ddbe5

drivers/Kconfig

diff --git a/drivers/Kconfig b/drivers/Kconfig
new file mode 100644
index 0000000..bd0b6fe
--- /dev/null
+++ b/drivers/Kconfig
@@ -0,0 +1,47 @@
+config DRV_CONSOLE
+	bool
+	default y
+	help
+	This option enables the UART console driver.
+
+config DRV_SERIAL
+	bool
+	default n
+	help
+	This option enables the serial driver.
+
+if DRV_SERIAL
+source "drivers/serial/Kconfig"
+endif
+
+config DRV_TIMER
+	bool
+	default n
+	help
+	This option enables the timer driver.
+
+if DRV_TIMER
+source "drivers/timer/Kconfig"
+endif
+
+config DRV_INTCTL
+	bool
+	default n
+	help
+	This option enables the interrupt controller driver.
+
+config DRV_PCI
+	bool
+	default n
+	help
+	This option enables the PCI driver.
+
+config DRV_RANDOM
+	bool
+	default n
+	help
+	This option enables the random number generator driver.
+
+if DRV_RANDOM
+source "drivers/random/Kconfig"
+endif