ARM: dts: msm: Revert 8952-mtp and disable camera dtsi changes for 8952

Disable camera dtsi changes to unblock other modules while bringup 3.18,
as part of earlier change mistakenly disabled in 8952-mtp dtsi.

Now revert 8952-mtp dtsi changes and disable camera dtsi changes.

Change-Id: Icbc1951f8bcdc7e138eb383702c0961d43d4a490
Signed-off-by: Ramesh V <ramev@codeaurora.org>