msm: camera: sensor: Add logic to call the res_mgr api if needed

Currently any slave can call pinctrl api for res_mgr which may
lead in corruption of pinctrl state. This change identify whether
slave is resposible for the shared pinctrl access by searching/matching
the gpio defined under res_mgr dtsi. Also remove post_init pinctrl as
this functionality is not used anymore. This can help to avoid the
unnecessary calls to the res_mgr which can avoid mutex operations to
imporve the performance.

CRs-Fixed: 2758167
Change-Id: Id0e863ae00eeef6c3877f02d34878c131695a604
Signed-off-by: Jigarkumar Zala <jzala@codeaurora.org>