soc: arm: arm: remove custom fixed MPU region definition

We remove the custom fixed MPU region definition from ARM
- Beetle
- Musca_a
- Musca_b1
- MPS2 (an385 and an521)
SoC definitions, as the common fixed MPU region definition
is now used.

Signed-off-by: Ioannis Glaropoulos <[email protected]>

Author: ioannisg

soc/arm/arm/beetle/CMakeLists.txt

@@ -4,4 +4,3 @@ zephyr_sources(
   soc.c
   power.c
   )
-zephyr_sources_ifdef(CONFIG_ARM_MPU arm_mpu_regions.c)

soc/arm/arm/beetle/arm_mpu_regions.c

@@ -2,5 +2,4 @@
 
 zephyr_sources(
   soc.c
-  arm_mpu_regions.c
   )

soc/arm/arm/mps2/CMakeLists.txt

@@ -6,5 +6,4 @@
 
 zephyr_sources(
   soc.c
-  arm_mpu_regions.c
   )

soc/arm/arm/mps2/arm_mpu_regions.c

@@ -6,5 +6,4 @@
 
 zephyr_sources(
   soc.c
-  arm_mpu_regions.c
   )