fix(layerscape): fix build issue of mmap_add_ddr_region_dynamically

Fix build issue of mmap_add_ddr_region_dynamically():
ls_bl2_el3_setup.c:(.text.bl2_plat_preload_setup+0x28): undefined
reference to mmap_add_ddr_region_dynamically

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: I74a8b4c2337fc0646d6acb16ce61755c5efbdf38
1 file changed