dt-bindings: net: add fsl,erratum-a011043

		The settings and programming routines for internal/external

		MDIO are different. Must be included for internal MDIO.

- fsl,erratum-a011043

		Usage: optional

		Value type: <boolean>

		Definition: Indicates the presence of the A011043 erratum

		describing that the MDIO_CFG[MDIO_RD_ER] bit may be falsely

		set when reading internal PCS registers. MDIO reads to

		internal PCS registers may result in having the

		MDIO_CFG[MDIO_RD_ER] bit set, even when there is no error and

		read data (MDIO_DATA[MDIO_DATA]) is correct.

		Software may get false read error when reading internal

		PCS registers through MDIO. As a workaround, all internal

		MDIO accesses should ignore the MDIO_CFG[MDIO_RD_ER] bit.

For internal PHY device on internal mdio bus, a PHY node should be created.

See the definition of the PHY node in booting-without-of.txt for an

example of how to define a PHY (Internal PHY has no interrupt line).