ARM: dts: imx6dl-prtvt7: Enable the VPU

Enable Video Processing Unit to make accelerated video decoding work.

Signed-off-by: Robin van der Gracht <[e-mail]>
Signed-off-by: Oleksij Rempel <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx6dl-prtvt7.dts

···
 	status = "disabled";
 };
 
-&vpu {
-	status = "disabled";
-};
-
 &iomuxc {
 	pinctrl_audmux: audmuxgrp {
 		fsl,pins = <