net: phy: dp83848: Add support for TI TLK10x Ethernet PHYs

The TI TLK10x Ethernet PHYs are similar in the interrupt relevant
registers and so are compatible with the DP83848x devices already
supported.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>