lib: arm_ffa: Cast FF-A registers to the correct types am: 43225004ae Original change: https://android-review.googlesource.com/c/trusty/lk/trusty/+/3451415 Change-Id: Id1bfaef6e0fca79e2195e7a99599c17ba33dc498 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>