include/zephyr: Use ROMABLE_REGION for LMA in .last_ram_section

Currently RAMABLE_REGION is used for both virtual address (VMA)
and a load address (LMA). It results in wrong LMA for some platforms.
This commits adds using ROMABLE_REGION for LMA.

Signed-off-by: Franciszek Pindel <[email protected]>

Author: FranciszekPin

include/zephyr/linker/ram-end.ld

@@ -12,4 +12,4 @@
 	_image_ram_size = _image_ram_end - _image_ram_start;
 	_end = .; /* end of image */
 	z_mapped_end = .;
-    } GROUP_NOLOAD_LINK_IN(RAMABLE_REGION, RAMABLE_REGION)
+    } GROUP_NOLOAD_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)