ARM: dts: msm: Disable shared display on DP display sa8195

Removed shared display configuration on DP interface as there
is no dynamic resolution detection for shared displays.

Add crtc num to match the number of connectors.

Change-Id: I1435fb7adb9d76aae682b380cb6f478a7e6fb5e3
Acked-by: Poojashree Masthi <c_pmasth@qti.qualcomm.com>
Signed-off-by: Rahul Sharma <rahsha@codeaurora.org>
Signed-off-by: Xiaowen Wu <wxiaowen@codeaurora.org>