gpio/omap: fix missing check in *_runtime_suspend()

gpio/omap: fix missing check in *_runtime_suspend()

We do checking for bank->enabled_non_wakeup_gpios in order
to skip redundant operations. Somehow, the check got missed
while doing the cleanup series.

Just to make sure that we do context restore correctly in
*_runtime_resume(), the bank->workaround_enabled check is
moved after context restore. Otherwise, it would prevent
context restore when bank->enabled_non_wakeup_gpios is 0.

Cc: Kevin Hilman <[email protected]>
Cc: Tony Lindgren <[email protected]>
Cc: Santosh Shilimkar <[email protected]>
Cc: Cousson, Benoit <[email protected]>
Cc: Grant Likely <[email protected]>
Signed-off-by: Tarun Kanti DebBarma <[email protected]>
Reviewed-by: Santosh Shilimkar <[email protected]>
Tested-by: Govindraj.R <[email protected]>
Signed-off-by: Kevin Hilman <[email protected]>