soc: arm: common: cortex_m: Move arm_mpu_mem_cfg.h

Move arm_mpu_mem_cfg header to common include directory.

The benefits are two-fold:
- Allow for out of tree SoC definitions to use them to
  define mpu_regions.
- Remove odd relative include path

Signed-off-by: Moritz Fischer <moritzf@google.com>

soc/arm/common/cortex_m/arm_mpu_regions.c

@@ -8,7 +8,7 @@
 #include <zephyr/arch/arm/aarch32/mpu/arm_mpu.h>
 #include <zephyr/devicetree/memory-attr.h>
 
-#include "arm_mpu_mem_cfg.h"
+#include <zephyr/arch/arm/aarch32/cortex_m/arm_mpu_mem_cfg.h>
 
 static const struct arm_mpu_region mpu_regions[] = {
 	/* Region 0 */

soc/arm/nuvoton_npcx/npcx7/mpu_regions.c

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include "../../common/cortex_m/arm_mpu_mem_cfg.h"
+#include <zephyr/arch/arm/aarch32/cortex_m/arm_mpu_mem_cfg.h>
 
 static const struct arm_mpu_region mpu_regions[] = {
 	MPU_REGION_ENTRY("FLASH_0_0",

soc/arm/nxp_imx/mimx8ml8_m7/mpu_regions.c

@@ -5,7 +5,7 @@
  */
 
 #include <zephyr/devicetree.h>
-#include "../../common/cortex_m/arm_mpu_mem_cfg.h"
+#include <zephyr/arch/arm/aarch32/cortex_m/arm_mpu_mem_cfg.h>
 
 #define REGION_MASK_BASE_ADDRESS			0x00000000U
 #define REGION_ITCM_BASE_ADDRESS			0x00000000U

soc/arm/nxp_imx/rt/mpu_regions.c

@@ -8,7 +8,7 @@
 
 #include <zephyr/devicetree.h>
 #include <zephyr/devicetree/memory-attr.h>
-#include "../../common/cortex_m/arm_mpu_mem_cfg.h"
+#include <zephyr/arch/arm/aarch32/cortex_m/arm_mpu_mem_cfg.h>
 
 static const struct arm_mpu_region mpu_regions[] = {
 	/* Region 0 */

soc/arm/nxp_s32/s32k/mpu_regions.c

@@ -6,7 +6,7 @@
 
 #include <zephyr/devicetree.h>
 #include <zephyr/linker/devicetree_regions.h>
-#include "../../common/cortex_m/arm_mpu_mem_cfg.h"
+#include <zephyr/arch/arm/aarch32/cortex_m/arm_mpu_mem_cfg.h>
 
 #if !defined(CONFIG_XIP)
 extern char _rom_attr[];

soc/arm/st_stm32/stm32h7/mpu_regions.c

@@ -5,7 +5,7 @@
  */
 
 #include <zephyr/devicetree.h>
-#include "../../common/cortex_m/arm_mpu_mem_cfg.h"
+#include <zephyr/arch/arm/aarch32/cortex_m/arm_mpu_mem_cfg.h>
 
 static const struct arm_mpu_region mpu_regions[] = {
 	MPU_REGION_ENTRY("FLASH", CONFIG_FLASH_BASE_ADDRESS,