Platform: Fix build issue on Musca-B1/S1

Build was broken on Musca-B1/S1 if the MCUBOOT_FIH_PROFILE
was not equal to HIGH.

Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Change-Id: I96998d76e7867a814b1b2ccc1bb5bbd9d5710470
4 files changed