fix(drivers/marvell/comphy-3700): drop MODE_REFDIV constant

The MODE_REFDIV constant is only used as mask of the MODE_REFDIV
register, but we already have MODE_REFDIV_MASK constant for that.

Drop MODE_REFDIV.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Icabb32189a7ca1a857dcf86cf0846bd0335f75d0

drivers/marvell/comphy/phy-comphy-3700.c

@@ -886,7 +886,7 @@ static int mvebu_a3700_comphy_pcie_power_on(uint8_t comphy_index,
 	/* 11. Release SW reset */
 	reg_set16(GLOB_PHY_CTRL0_ADDR(PCIE) + COMPHY_SD_ADDR,
 		  MODE_CORE_CLK_FREQ_SEL | MODE_PIPE_WIDTH_32,
-		  SOFT_RESET | MODE_REFDIV);
+		  SOFT_RESET | MODE_REFDIV_MASK);
 
 	/* Wait for > 55 us to allow PCLK be enabled */
 	udelay(PLL_SET_DELAY_US);

drivers/marvell/comphy/phy-comphy-3700.h

@@ -180,7 +180,6 @@ enum {
 #define GLOB_PHY_CTRL0_ADDR(unit)	(COMPHY_REG_GLOB_PHY_CTRL0_ADDR * \
 					 PHY_SHFT(unit))
 #define SOFT_RESET			BIT(0)
-#define MODE_REFDIV			0x30
 #define MODE_CORE_CLK_FREQ_SEL		BIT(9)
 #define MODE_PIPE_WIDTH_32		BIT(3)
 #define MODE_REFDIV_OFFSET		4