refactor(cpus): convert the Cortex-A78AE to use cpu helpers

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: Ic4189d943c3e55bc25a82f09f2ad4a5b06f443a3
(cherry picked from commit 65a538484450b0c1813a0f154a58bf04b4b0edb9)
1 file changed