msm: ipa: Fix to avoid NETDEV WATCHDOG warning logs

To avoid NETDEV WATCHDOG warning logs in rment suspended state,
added changed to stopping watchdog timer in suspend state and
start again resume state.

Change-Id: Ie187ba6cdb6adc3883fa17c33b100389cfb6bea5
Acked-by: Ashok Vuyyuru <avuyyuru@qti.qualcomm.com>
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>