arm: msm: add gpiomux and clocks for camera on APQ8084

GPIOs for CCI, CAM1, CAM2 and WEBCAM are added in APQ8084
gpiomux. Also, add required CAMSS clocks in clock-8084.c.

Change-Id: Ic95697847ab011a61349ea7d34a10ee9bb973c4c
Signed-off-by: Punit Soni <punits@codeaurora.org>