msm: vidc: Skip suspend operation when firmware is in bad state

Video driver should not try to suspend the venus firmware
when the firmware is in bad state. Since the firmware has gone
in to bad state, it will not be responsive to any commands from
the driver.

Change-Id: I4c320e683bb1b0d123e39dbf4feb0b71e2b2af67
Signed-off-by: Arun Menon <avmenon@codeaurora.org>