When the video usecase have macro blocks per sec which is  more than
supported, keep the required bus bandwidth as the maximum supported.
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>