mfd: Fix initialisation of tps65910 interrupts

Fix regression introduced by commit
a2974732ca7614aaf0baf9d6dd3ad893d50ce1c5 (TPS65911: Add new irq
definitions) which caused irq_num to be incorrectly set for tps65910.

Cc: stable@kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/tps65910-irq.c b/drivers/mfd/tps65910-irq.c
index 2bfad5c..a56be93 100644
--- a/drivers/mfd/tps65910-irq.c
+++ b/drivers/mfd/tps65910-irq.c
@@ -178,8 +178,10 @@
 	switch (tps65910_chip_id(tps65910)) {
 	case TPS65910:
 		tps65910->irq_num = TPS65910_NUM_IRQ;
+		break;
 	case TPS65911:
 		tps65910->irq_num = TPS65911_NUM_IRQ;
+		break;
 	}
 
 	/* Register with genirq */