OMAP1: CAMERA: Convert camera_core.c to use v4l2-int-device API

This patch converts camera_core.c to use v4l2-int-device API.
Only read method was tested with success. MMAP method still needs
re-work and tests.

Signed-off-by: Eduardo Valentin <eduardo.valentin@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --cc drivers/media/video/omap/camera_core.c
Simple merge

diff --cc drivers/media/video/omap/camera_core.h
Simple merge