Update arm-trusted-firmware submodule to upstream master

Updating from commit id 42cdeb93:
2019-09-13 12:09:21 +0000 - (Merge "stm32mp1: manage CONSOLE_FLAG_TRANSLATE_CRLF and cleanup driver" into integration)

to commit id ace23683:
2019-09-27 09:54:27 +0000 - (Merge changes from topic "ld/stm32-authentication" into integration)

This brings in 83 new commits.

Change-Id: I273b5014db76d307d8735d78a8fdd5db3d07146c
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35625
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

1 files changed, 0 insertions, 0 deletions

diff --git a/3rdparty/arm-trusted-firmware b/3rdparty/arm-trusted-firmware
-Subproject 42cdeb93080f2b54a75be14e4f5ee776872f3f0
+Subproject ace23683beb81354d6edbc61c087ab8c384d063