PMQA: Makefile: Support cross-compilation

Don't use gcc directly, use the CC variable to allow passing something
like CC=aarch64-linux-gnu-gcc in order to cross compile to utils.

This allows host-side compilation and bundling of the tools into a small
ramdisk on the target.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
1 file changed