include/linker: .object_access.* should be in ROM

.object_access.* sections should be with

GROUP_LINK_IN(ROMABLE_REGION) as other sections in
common-rom.ld

Fixes #15481

Signed-off-by: Wayne Ren <[email protected]>
Signed-off-by: Anas Nashif <[email protected]>

Author: Wayne Ren

include/linker/common-rom.ld

@@ -41,7 +41,7 @@
 		__object_access_start = .;
 		KEEP(*(".object_access.*"))
 		__object_access_end = .;
-	}
+	} GROUP_LINK_IN(ROMABLE_REGION)
 #endif
 
 	SECTION_PROLOGUE(app_shmem_regions,,)