spl: Kconfig: Fix SPL_OPTEE_IMAGE dependency

fdt_addr will build as part of SPL_LOAD_FIT or SPL_LOAD_FIT_FULL
which is indeed required to build optee image support in SPL.

common/spl/spl.c: In function ‘jump_to_image_optee’:
common/spl/spl.c:220:46: error: ‘struct spl_image_info’ has no member named ‘fdt_addr’
  220 |         spl_optee_entry(NULL, NULL, spl_image->fdt_addr,

Fix the dependency support.

Signed-off-by: Jagan Teki <jagan@edgeble.ai>