msm: camera: cpas: Update camera AXI ab, ib bw voting

Vote both ab, ib for mnoc paths and only ib for camnoc
paths. While voting a non-zero bw make sure to vote
minimum bw value that bus driver accepts.

Change-Id: I36d5373509e09b4b1d8dcbe56687783a0017c5ad
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>