refactor(drivers/marvell/comphy-3700): unify Generation Settings register names

Sometimes we call the constants GENx_SET_y, sometimes GENx_SETTINGS_y,
and sometimes GENx_SETTING_y.

Unify this into GENx_SETy.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I3810fb52b2897fe6730ef6e58d434c47cfef14a9
diff --git a/drivers/marvell/comphy/phy-comphy-3700.c b/drivers/marvell/comphy/phy-comphy-3700.c
index 2a82e16..3851e46 100644
--- a/drivers/marvell/comphy/phy-comphy-3700.c
+++ b/drivers/marvell/comphy/phy-comphy-3700.c
@@ -684,7 +684,7 @@
 	/*
 	 * 6. Set G2 Spread Spectrum Clock Amplitude at 4K
 	 */
-	usb3_reg_set(reg_base, COMPHY_GEN2_SET_2,
+	usb3_reg_set(reg_base, COMPHY_GEN2_SET2,
 		     G2_TX_SSC_AMP_VALUE_20, G2_TX_SSC_AMP_MASK);
 
 	/*
@@ -693,7 +693,7 @@
 	 */
 	mask = G3_TX_SSC_AMP_MASK | G3_VREG_RXTX_MAS_ISET_MASK |
 		RSVD_PH03FH_6_0_MASK;
-	usb3_reg_set(reg_base, COMPHY_GEN3_SET_2,
+	usb3_reg_set(reg_base, COMPHY_GEN3_SET2,
 		     G3_VREG_RXTX_MAS_ISET_60U, mask);
 
 	/*
@@ -769,7 +769,7 @@
 	/*
 	 * 15. Set capacitor value for FFE gain peaking to 0xF
 	 */
-	usb3_reg_set(reg_base, COMPHY_GEN2_SETTINGS_3,
+	usb3_reg_set(reg_base, COMPHY_GEN2_SET3,
 		     COMPHY_GEN_FFE_CAP_SEL_VALUE, COMPHY_GEN_FFE_CAP_SEL_MASK);
 
 	/*