msm: camera: Update bandwidth requirement for 8x30.

8x30 hardware configuration is slightly lower compared
to 8960/8064. So the bus bandwidth figures need to be
adjusted to avoid bus overflow issues seen in different
camera usecases.

Change-Id: I385b1132130affb676ca8199d4b887b7ecafaae3
Signed-off-by: Kiran Kumar H N <hurlisal@codeaurora.org>