clang: Enable integrated assembler on clang builds

Change-Id: I883bf7eb2ab52ba3d7a284c96d4aade8bc1ee4ae
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/21221
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed