Change in coreboot[master]: Update arm-trusted-firmware submodule to upstream master

[Martin Roth (Code Review)]

Martin Roth has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/51463 )

Change subject: Update arm-trusted-firmware submodule to upstream master
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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 
Change-Id: Id186df36d90563f94f17cc210a6f634adc4ec61e
---
M 3rdparty/arm-trusted-firmware
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/63/51463/1

diff --git a/3rdparty/arm-trusted-firmware b/3rdparty/arm-trusted-firmware
index a4c979a..7ad3981 160000
--- a/3rdparty/arm-trusted-firmware
+++ b/3rdparty/arm-trusted-firmware
@@ -1 +1 @@
-Subproject commit a4c979ade4438dfdd69c1b6e23b64e88eb648183
+Subproject commit 7ad39818b184850d263008e7d36ba16adf72a669