msm: vidc: Support session_continue for sufficient event

Venus 3xx has deprecated continue_data_transfer property.
In case, client enables e2e smooth streaming and firmware
reports sufficient resources event, then driver should
send session_continue command to firmware, to resume execution.
Without this change, firmware will stall waiting for session_continue
command, if client has enabled smooth streaming and resources
are sufficient.

Change-Id: I0b061b8451a771416d776dc3a6961d7a0887bc86
Signed-off-by: Arun Menon <avmenon@codeaurora.org>