msm: camera: Move gemini clk to gemini driver

Move gemini clk and regulator to gemini driver,
to remove the need for platform specific io files.
Update clock lookup table with the gemini device name,
for find clocks properly through clk_get

Change-Id: I5097635eb1da4c142fea0ee40516b74d21cf0929
Signed-off-by: Kevin Chan <ktchan@codeaurora.org>
Signed-off-by: Sunil Joseph <sunilj@codeaurora.org>
Signed-off-by: Jignesh Mehta <jigneshm@codeaurora.org>