msm: vidc: Introduce device specific code for video driver

Update vidc driver to make platform driver rather than dtsi
centric driver.

By doing this, we can simplify and enhance codec specific data
processing and remove redundant code.

CRs-Fixed: 2062045
Change-Id: I3c42405854d750110d501461f9897ef90e9120d0
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>