camera: add camera headers into exclude list

Currently, header test puts videodev2.h into exclude list,
which avoid its inclusion while performing header test.

There are few camera headers which includes videodev2.h
and fails to compile during header test on some
host machine. Ideally, the headers files which includes
videodev2.h should get excluded from header test as they
eventually becomes incompatible due to videodev2.h .

This patch add camera headers to exclude list.

Change-Id: Ia8b7dc8ec635d568a026b948854448c77aae7770
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>