msm: camera: Front camera fixes for 8974

Change clock array size to accomodate 8974 clocks and change
OV2720 (front camera) I2C write sequential to I2C write since
CCI has issues with I2C write sequential.

Change-Id: Ic73e3fc7005d54b924b6db107a9a46199c2bf54a
Signed-off-by: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>