According to datasheet:
"[Bit 15 of Basic Mode Control Register] sets the status and control registers
of the PHY (register 0062-0074) in a default state. This bit is self-clearing.
1 = software reset; 0 = normal operation."

This fixes the netcard detection failure in Minoca OS.
Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NJason Wang <jasowang@redhat.com>