Merge 79a4fba7 ("kbuild: Add KBUILD_CPPFLAGS to as-option invocation") into android13-5.10-lts

Steps on the way to 5.10.239

Resolves merge conflicts in:
	scripts/Kbuild.include
	scripts/Makefile.compiler

Change-Id: I99e0481dd3163bf9fcf8c81da60beb3917c7f8db
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>