Fix the PLL register value for 10 Mbit/s link modes on TP-Link EAP boards using a AR8033 SGMII PHY. Otherwise, 10 Mbit/s links do not transfer data. Reported-by: Tom Herbers <freifunk@tomherbers.de> Tested-by: Tom Herbers <freifunk@tomherbers.de> Signed-off-by: David Bauer <mail@david-bauer.net>