drm/imx: allow building under COMPILE_TEST

Allow to compile-test imx-drm on other platforms.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Philipp Zabel 2018-11-05 16:36:27 +01:00
commit f6019702d9