ARM: dts: msm: Fix compilation issue with camera nodes on sm6150

New overlay files added for sm6150 does not include
camera headers and results in compilation issue. fix it.

Change-Id: I3874f18fa7d37ab36390cde2f09b6fa53062cfc7
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>
Signed-off-by: Sridhar Gujje <sgujje@codeaurora.org>