i2c: omap: always return IRQ_HANDLED

Always return IRQ_HANDLED otherwise we could get our IRQ line disabled due
to many spurious IRQs.
Signed-off-by: NFelipe Balbi <balbi@ti.com>
[Trivial changes to commitlogs]
Signed-off-by: NShubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>

drivers/i2c/busses/i2c-omap.c

@@ -962,7 +962,7 @@ omap_i2c_isr(int this_irq, void *dev_id)
 		}
 	} while (stat);
 
-	return count ? IRQ_HANDLED : IRQ_NONE;
+	return IRQ_HANDLED;
 }
 
 static const struct i2c_algorithm omap_i2c_algo = {