Build: Fix CC312 init skip issue on Musca-B1/S1

Accidentally the initialization of CC312 crypto accelerator
was skipped on Musca boards. Therefore at execution the
CPU stuck in an infinite loop.

Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Change-Id: I29e8c8b1ace300a7d44efb1dcd1ffe86e1becb21
5 files changed