Map LDFLAGS to LINKFLAGS This makes sure the build picks up linker flags passed by ebuilds via the environment. BUG=None TEST=Check that -fsanitize=address is present in linker invocations reported by `USE=asan emerge-$BOARD -v1 libchrome` Change-Id: I0710173836c1257729fab4a2658768934a8aff6f Reviewed-on: https://chromium-review.googlesource.com/1352099 Commit-Ready: Mattias Nissler <[email protected]> Tested-by: Mattias Nissler <[email protected]> Reviewed-by: Hidehiko Abe <[email protected]> Reviewed-by: Mike Frysinger <[email protected]>