Revert "support Rockchip RGA"

This reverts commit 3285a94.

Change-Id: I36c39e0e23939159dc139ea9e742e266593c65da
Reviewed-on: https://tp-biosrd-v02/gerrit/82025
Reviewed-by: Jamess Huang(黃以民) <Jamess_Huang@asus.com>
Tested-by: Jamess Huang(黃以民) <Jamess_Huang@asus.com>

Author: jamess-huang

arch/arm/boot/dts/rk3288-miniarm.dts

@@ -633,9 +633,6 @@
 	status = "okay";
 };
 
-&rga{
-	status = "okay";
-};
 
 &spi2 {
 	status = "okay";

arch/arm/configs/miniarm-rk3288_defconfig

@@ -823,7 +823,3 @@ CONFIG_TASKSTATS=y
 CONFIG_TASK_DELAY_ACCT=y
 CONFIG_TASK_XACCT=y
 CONFIG_TASK_IO_ACCOUNTING=y
-#CONFIG_ROCKCHIP_DRM_RGA=n
-#CONFIG_ROCKCHIP_RGA=n
-#CONFIG_ROCKCHIP_RGA2=n
-CONFIG_VIDEO_ROCKCHIP_RGA=y