Update arm-trusted-firmware submodule to upstream master
Updating from commit id
a4c979ade:
2020-08-26 14:59:05 +0000 - (Merge changes I6bf1db15,I8631c34a,Id76ada14 into integration)
to commit id
7ad39818b:
2020-10-12 09:16:21 +0000 - (Merge "mediatek: mt8192: add GIC600 support" into integration)
This brings in 222 new commits.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: Id186df36d90563f94f17cc210a6f634adc4ec61e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51463
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>