media: xilinx: csi2rxss: Use mipi-csi2.h

Replace the driver-specific definitions of MIPI CSI-2 data types with
macros from mipi-csi2.h.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>