feat(el3-spmc): support simd context management upon world switch

This patch performs necessary simd context management operations for
context switch from NWd to SWD and vice versa.

Change-Id: Ife01fffc4e2a7f3deb9b6273424161c225fdbbfb
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
2 files changed