msm: camera: ife: Deinit input mux resources

We must deinit IFE input mux resources before the check for open
count. Without this change the last bus resource is the last to
enter this function when open count reaches zero. So input mux
resources are never deinitialized.

CRs-Fixed: 2545140
Change-Id: I355afce7d631cdb00e3f6da0ba0be40c2e2b63a2
Signed-off-by: Venkat Chinta <vchinta@codeaurora.org>