usb: gsi: Allow suspend upon previous suspend failure in gsi_suspend

Driver marks func_is_suspended flag to true and queue suspend work in
gsi_suspend. suspend_work may fail the suspend if the LINK is not in U3.

During host hibernation testing gsi_suspend failing as LINK is not in U3
and next time when bus suspend initiated driver checking for
func_is_suspended flag and bailout the suspend with out queuing suspend
work. This causes a mismatch of usage count and usb not entering to
low power mode.

To fix this issue, Check for the state in gsi_suspend. If the state is
!= suspended or != suspend_in_progress then don't bail out the suspend.

Change-Id: Iade9ba330b232261e205cd821ef42053297befbb
Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>