ARM: dts: msm: Enable camera for sdm630

1. Add FRONT, BACK, AUX camera nodes.
2. Add CSID, CSIPHY,ISPIF, VFE, JPEG, CPP, nodes.
3. Add GPIO configuration in pinctrl.
4. Add support for upstream clock config.
5. Add sensor VAF to LDO8 with min vote of 2.8.

Change-Id: I49f1ec1941a080d85812309c7a8cce7302c49e25
Signed-off-by: Shankar Ravi <rshankar@codeaurora.org>