fix(drivers/marvell/comphy-3700): fix PIN_PU_IVREF register name

According to Functional Specification, the register at bit 1 of PHY
Configuration 1 is called PIN_PU_IVREF, not PIN_PU_IVEREF. Fix this.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I912fa4a1956bf0b1b35a24925db03e3dbbe1adf3
diff --git a/drivers/marvell/comphy/phy-comphy-3700.h b/drivers/marvell/comphy/phy-comphy-3700.h
index 94056f1..4e99c5d 100644
--- a/drivers/marvell/comphy/phy-comphy-3700.h
+++ b/drivers/marvell/comphy/phy-comphy-3700.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 Marvell International Ltd.
+ * Copyright (C) 2018-2021 Marvell International Ltd.
  *
  * SPDX-License-Identifier:     BSD-3-Clause
  * https://spdx.org/licenses
@@ -224,7 +224,7 @@
 
 /* SGMII */
 #define COMPHY_PHY_CFG1_OFFSET(lane)	((1 - (lane)) * 0x28)
-#define PIN_PU_IVEREF_BIT		BIT(1)
+#define PIN_PU_IVREF_BIT		BIT(1)
 #define PIN_RESET_CORE_BIT		BIT(11)
 #define PIN_RESET_COMPHY_BIT		BIT(12)
 #define PIN_PU_PLL_BIT			BIT(16)