[HAL][CORTEX] Align CORTEX MPU Instruction Access Shareable value with the one defined in STM32 Cortex®-M33 MCUs programming manual

Inc/stm32l5xx_hal_cortex.h

diff --git a/Inc/stm32l5xx_hal_cortex.h b/Inc/stm32l5xx_hal_cortex.h
index 8057da0..f8a2fc9 100644
--- a/Inc/stm32l5xx_hal_cortex.h
+++ b/Inc/stm32l5xx_hal_cortex.h
@@ -151,7 +151,7 @@
   * @{
   */
 #define  MPU_ACCESS_NOT_SHAREABLE        0U
-#define  MPU_ACCESS_OUTER_SHAREABLE      1U
+#define  MPU_ACCESS_OUTER_SHAREABLE      2U
 #define  MPU_ACCESS_INNER_SHAREABLE      3U
 /**
   * @}