dwc_eth_qos: do phy_start before resetting hardware

dwc_eth_qos: do phy_start before resetting hardware

This reverts the changed init order from commit 9ebfed3d17be
("dwc_eth_qos: Reset hardware before PHY start") and makes another fix
for the race.

It turned out that the reset state machine of the dwceqos hardware
requires PHY clocks to be present in order to complete the reset
cycle.

To plug the race with the phy state machine we defer link speed
setting until the hardware init has finished.

Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>