feat(ff-a): update FF-A version to v1.1

Bump the required FF-A version in framework and manifests to v1.1 as
upstream feature development goes.

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: If3dc227635f1c65d0623ed36ad7e3766c5d5e132
11 files changed