msm: camera: Add retry mechanism to detect camera sensor

When device power up, probe happens where camera sensors
connected in each slot are detected by reading its chip id. Add
retry mechanism to try 3 times to read chip id for detecting
camera sensors.

Change-Id: Id2788f32fd7255eb9ca748ddce6e92267a1326ef
Signed-off-by: Wei Ding <weiding@codeaurora.org>
1 file changed