mfd: Move pcf50633 messages to appropriate log levels

IRQs masking/unmasking should be less verbose.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/pcf50633-core.c

@@ -290,7 +290,7 @@ out:
 
 int pcf50633_irq_mask(struct pcf50633 *pcf, int irq)
 {
-	dev_info(pcf->dev, "Masking IRQ %d\n", irq);
+	dev_dbg(pcf->dev, "Masking IRQ %d\n", irq);
 
 	return __pcf50633_irq_mask_set(pcf, irq, 1);
 }
@@ -298,7 +298,7 @@ EXPORT_SYMBOL_GPL(pcf50633_irq_mask);
 
 int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq)
 {
-	dev_info(pcf->dev, "Unmasking IRQ %d\n", irq);
+	dev_dbg(pcf->dev, "Unmasking IRQ %d\n", irq);
 
 	return __pcf50633_irq_mask_set(pcf, irq, 0);
 }