ARM: dts: imx6qdl: Add compatible, clocks, irqs to MIPI CSI-2 node

Add to the MIPI CSI2 receiver node: compatible strings,
interrupt sources, and clocks.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>