Merge 534066a9 (".gitignore: ignore *.cover and *.mbx") into android-mainline

Steps on the way to 6.3-rc1

Resolves merge conflicts in:
	arch/arm/mach-s3c/Makefile

Change-Id: Ie0c4435609440f1c7f68d0de9cc5d935cd09eaae
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>