Updating from commit id 9d4053d: 2020-11-20 01:51:08 +0000 - (Revert "Reland: Clean up implicit fall through.") to commit id 48195e5: 2020-11-24 10:23:45 +0000 - (Makefile: Test for warning flags before using them) This brings in 3 new commits. Change-Id: I64f27f346df264cb6eeeb4e3203fcca7d35f7e83 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47906 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Idwer Vollering <vidwer@gmail.com>