r8169: partial support and phy init for the 8168d

Extracted from Realtek's 8.012.00 r8168 driver.

Signed-off-by: Francois Romieu <[email protected]>
Tested-by: Simon Farnsworth <[email protected]>
Cc: Edward Hsu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: françois romieu