rcar_gen3: drivers: rpc: Modify PFC code

Modify PFC code and rename macro of MFIS according to Errata of
Hardware User's Manual

Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I0ece522647319286350843bbbe8b8ba8b0ae9bac
diff --git a/drivers/renesas/rcar/pfc/pfc_regs.h b/drivers/renesas/rcar/pfc/pfc_regs.h
index b0b4e6f..e7dd543 100644
--- a/drivers/renesas/rcar/pfc/pfc_regs.h
+++ b/drivers/renesas/rcar/pfc/pfc_regs.h
@@ -206,7 +206,7 @@
 #define PFC_DRVCTRL24		(PFC_BASE + 0x0360U)
 #define PFC_POCCTRL0		(PFC_BASE + 0x0380U)
 #define PFC_IOCTRL31		(PFC_BASE + 0x0384U)
-#define PFC_POCCTRL1		(PFC_BASE + 0x0388U)
+#define PFC_POCCTRL2		(PFC_BASE + 0x0388U)
 #define PFC_TDSELCTRL0		(PFC_BASE + 0x03C0U)
 #define PFC_IOCTRL		(PFC_BASE + 0x03E0U)
 #define PFC_TSREG		(PFC_BASE + 0x03E4U)