serial: msm_geni_serial: Do not check for uport->suspended flag for suspend

During system suspend, uart_suspend_port() marking port->suspended flag
to true before calling stop_rx and pm_ops for unvoting the clocks
for console. After this when stop_rx called we are continuous getting
cancel IRQ and ISR handler is returned with port->suspended check.
This is leading to IRQ storm in console UART usecase.

To avoid this replace uport->suspended check in handle isr with
new flag added during resources_off so that we will handle stop_rx during
system suspend for console case.

Change-Id: I4666b727ff5c5b041280a05f3cdd44bb5f73bc16
Signed-off-by: Paras Sharma <parashar@codeaurora.org>
Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>