- Get the min buffer count required by FW from source event change
  and use the same value to decide actual buffer count and for
  buffer size calculation.
- Setup DPB and OPB buffers after session continue incase of
  reconfig.
Signed-off-by: NDikshita Agarwal <dikshita@codeaurora.org>
Signed-off-by: NStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab+huawei@kernel.org>