spmd: skip loading of secure partitions on pre-v8.4 platforms

When SPD=spmd and SPMD_SPM_AT_SEL2=0, that is SPMC sits at S-EL1
then there is no need for TF-A to load secure partitions individually.
In this configuration, SPMC handles secure partition loading at
S-EL1/EL0 levels.

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I06a0d88a4811274a8c347ce57b56bb5f64e345df
4 files changed