drm: rockchip: rk628: Add rk628 hdmirx driver

Change-Id: If4d9fefeada220430f9b6a5b3a35a20239461d3e
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>

Author: Algea Cao

drivers/gpu/drm/rockchip/rk628/Makefile

@@ -9,4 +9,5 @@ obj-$(CONFIG_DRM_ROCKCHIP_RK628) += rk628_combtxphy.o \
 				    rk628_lvds.o \
 				    rk628_post_process.o \
 				    rk628_rgb.o \
-				    rk628_hdmi.o
+				    rk628_hdmi.o \
+				    rk628_hdmirx.o