msm: camera: Change sensor probe order

S5K3L1YX is back camera and OV2720 is front camera.
Add S5K3L1YX sensor before OV2720 sensor in compile order
so that S5K3L1YX probes first and back sensor is opened
when camera is opened.

Change-Id: Ib5700609b74d529cdfbf1f8220f0cc185e8b14e8
Signed-off-by: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>