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 <wei.ren@synopsys.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>