drm: zynq_drm: drv: Add DRIVER_PRIME to driver feature

Add a DRIVER_PRIME flag to drm driver features for dmabuf support

Signed-off-by: hyun woo kwon <hyunk@xilinx.com>
arch: arm: dts: zc702-drm: Add Xilinx Video IPs

Megere devices IP nodes for V4L2 input pipeline:
tpg, remapper, axi-video.

Signed-off-by: hyun woo kwon <hyunk@xilinx.com>
arm: config: zynq_drm: Add VIDEO configs

Add configs for V4L2 and Xilinx Video IPs including
remapper, and tpg.

Signed-off-by: hyun woo kwon <hyunk@xilinx.com>