pmic: fix missing SWITCH_SIZE

Applying ccbb18713b279f1326479cc10664d247206e9e76,
the define disappeared. Fix it.

Signed-off-by: Stefano Babic <sbabic@denx.de>
diff --git a/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
index d304658..07199b4 100644
--- a/include/power/pfuze100_pmic.h
+++ b/include/power/pfuze100_pmic.h
@@ -232,5 +232,7 @@
 #define APS_PFM		0xc
 #define PWM_PFM		0xd
 
+#define SWITCH_SIZE	0x7
+
 int power_pfuze100_init(unsigned char bus);
 #endif