arch: arm: cortex_a_r/cortex_m: fix text region overlap with ram in !XIP

ROM_ADDR and RAM_ADDR is same when CONFIG_XIP is not defined.
If we reset the location for RAMABLE region to RAM_ADDR text region,
which is part of rom, overlaps with initial ram region.
This commit tries to avoid this incorrect behaviour for cortex_a
and cortex_m

Signed-off-by: Simon Maurer <[email protected]>

Author: Simon Maurer

include/zephyr/arch/arm/cortex_a_r/scripts/linker.ld

@@ -257,7 +257,10 @@ SECTIONS
 
     GROUP_START(RAMABLE_REGION)
 
+#ifdef CONFIG_XIP
     . = RAM_ADDR;
+#endif
+
     /* Align the start of image RAM with the
      * minimum granularity required by MPU.
      */

include/zephyr/arch/arm/cortex_m/scripts/linker.ld

@@ -257,7 +257,10 @@ SECTIONS
 
     GROUP_START(RAMABLE_REGION)
 
+#ifdef CONFIG_XIP
 	. = RAM_ADDR;
+#endif
+
 	/* Align the start of image RAM with the
 	 * minimum granularity required by MPU.
 	 */