net/fsl: replace (1 << x) with BIT(x) for bit definitions in xgmac_mdio

#define MDIO_STAT_ENC		BIT(6)

#define MDIO_STAT_CLKDIV(x)	(((x>>1) & 0xff) << 8)

#define MDIO_STAT_BSY		(1 << 0)

#define MDIO_STAT_RD_ER		(1 << 1)

#define MDIO_STAT_BSY		BIT(0)

#define MDIO_STAT_RD_ER		BIT(1)

#define MDIO_CTL_DEV_ADDR(x) 	(x & 0x1f)

#define MDIO_CTL_PORT_ADDR(x)	((x & 0x1f) << 5)

#define MDIO_CTL_PRE_DIS	(1 << 10)

#define MDIO_CTL_SCAN_EN	(1 << 11)

#define MDIO_CTL_POST_INC	(1 << 14)

#define MDIO_CTL_READ		(1 << 15)

#define MDIO_CTL_PRE_DIS	BIT(10)

#define MDIO_CTL_SCAN_EN	BIT(11)

#define MDIO_CTL_POST_INC	BIT(14)

#define MDIO_CTL_READ		BIT(15)

#define MDIO_DATA(x)		(x & 0xffff)

#define MDIO_DATA_BSY		(1 << 31)

#define MDIO_DATA_BSY		BIT(31)

/*

 * Wait until the MDIO bus is free