power: pfuze100: Add MEMx register definitions

Add missing MEMA - MEMD register definitions for PFUZE100.

Based on work from Heiko Schocher <hs@denx.de>.
Signed-off-by: Philip Oberfichtner <pro@denx.de>
diff --git a/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
index f4383ed..278f254 100644
--- a/include/power/pfuze100_pmic.h
+++ b/include/power/pfuze100_pmic.h
@@ -18,6 +18,11 @@
 	PFUZE100_REVID		= 0x03,
 	PFUZE100_FABID		= 0x04,
 
+	PFUZE100_MEMA		= 0x1c,
+	PFUZE100_MEMB		= 0x1d,
+	PFUZE100_MEMC		= 0x1e,
+	PFUZE100_MEMD		= 0x1f,
+
 	PFUZE100_SW1ABVOL	= 0x20,
 	PFUZE100_SW1ABSTBY	= 0x21,
 	PFUZE100_SW1ABOFF	= 0x22,