ARM: dts: msm: Add mcd device tree data for msm8996

Add the MCD device tree data to dts files by adding mcd device
node with all the necessary parameters.

Change-Id: Iec238a3858f1a87e17df53ab71973e3b632fdef4
Acked-by: Tony Hamilton <tonyh@qti.qualcomm.com>
Signed-off-by: Puneet Mishra <puneetm@codeaurora.org>