Make DRM configurable at build time to avoid increasing the size of
pbsplash. DRM support is not yet suitable to be enabled by default, but
it's nice to have it merged in so the code doesn't bitrot.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
We only need a subset of it, to iterate faster and integrate features
like in-line rotation let's vendor it for now.
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
