Patch merged into coreboot/master: lint/checkpatch.pl: escape \{ in perl regex to fix warnings

the following patch was just integrated into master:
commit ebef00faf650c7e72da3fdaa0d3ed1fff2e7dce8
Author: Alexander Couzens 
Date:   Mon Apr 11 00:52:01 2016 +0200

lint/checkpatch.pl: escape { in perl regex to fix warnings

Fix warnings:
    Unescaped left brace in regex is deprecated, passed through in regex;
    marked by <-- HERE in m/#\s*define.*do\s{ <-- HERE / at util/lint/checkpatch.pl line 3261.
    marked by <-- HERE in m/(.*){ <-- HERE / at util/lint/checkpatch.pl line 3750.
    marked by <-- HERE in m/do{ <-- HERE / at util/lint/checkpatch.pl line 3751.
    marked by <-- HERE in m/^({ <-- HERE / at util/lint/checkpatch.pl line 4194.

Change-Id: If0c1f07a16df9e6cd1c1393a31af8b8ea6a66b01
    Signed-off-by: Alexander Couzens 
    Reviewed-on: https://review.coreboot.org/14310
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See https://review.coreboot.org/14310 for details.

-gerrit