serial: msm_geni_serial: check ioctl_count with auto_suspend enabled

Whenever rx sequencer is in the process of getting stopped and there
is an incoming data, we check the ioctl_count and if it is 0, the
stop_rx_sequencer will be aborted. We see a SMMU fault when the
auto_suspend is disabled which is reulting into ioctl_count 0 as the
clocks are not turned on.

Whenever there is a change in baud request and rx_sequencer is stopped,
if there is an incoming data, check ioctl_count is 0 along with auto
suspend is enabled or not before aborting the stop rx sequencer.

Change-Id: Ib2313398746f139295cf384b59a539ca079d1737
Signed-off-by: Prasanna S <quic_prass@quicinc.com>
Signed-off-by: Panicker Harish <quic_pharish@quicinc.com>