MAINTAINERS: add maintainer entry for Exynos DP driver

Add maintainer entry for Exynos DP driver which can be used for
Samsung Exynos SoC series.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
1 file changed