msm: camera: ife: Handle per-frame bw config updates

Add support to handle per-frame bw updates from
umd, secondly when reducing bw compred to previous
request delay it by few frames so that we finish with
the current request which might need previous
high bw.

Change-Id: Ia209bcc64d2cd927021b6efebe6d7c12a8dfc23b
Signed-off-by: vhajeri <vhajeri@codeaurora.org>
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>