gpio/omap: fix incorrect context restore logic in omap_gpio_runtime_*

In omap_gpio_runtime_suspend/resume() the context save/restore should
be independent of bank->enabled_non_wakeup_gpios. This was preventing
context restore of GPIO lines which are not wakeup enabled.

Reported-by: Govindraj Raja <govindraj.raja@ti.com>
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>

drivers/gpio/gpio-omap.c

@@ -1247,9 +1247,6 @@ static int omap_gpio_runtime_suspend(struct device *dev)
 	 * non-wakeup GPIOs.  Otherwise spurious IRQs will be
 	 * generated.  See OMAP2420 Errata item 1.101.
 	 */
-	if (!(bank->enabled_non_wakeup_gpios))
-		goto update_gpio_context_count;
-
 	bank->saved_datain = __raw_readl(bank->base +
 						bank->regs->datain);
 	l1 = __raw_readl(bank->base + bank->regs->fallingdetect);
@@ -1298,7 +1295,7 @@ static int omap_gpio_runtime_resume(struct device *dev)
 	__raw_writel(bank->context.risingdetect,
 		     bank->base + bank->regs->risingdetect);
 
-	if (!bank->enabled_non_wakeup_gpios || !bank->workaround_enabled) {
+	if (!bank->workaround_enabled) {
 		spin_unlock_irqrestore(&bank->lock, flags);
 		return 0;
 	}