msm: camera: fd: Changes to adapt fd driver to soc layer

Adapt fd driver to SOC layer by replacing the msm specific
routines with SOC API which eases the portability of fd driver
on to non-msm platforms.

CRs-Fixed: 968483
Change-Id: Iadce8d1b62b81b000957bc482dd60547937cf5c1
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>