Fix the PLL register value for 10 Mbit/s link modes on the UniFi AC Lite
/ Mesh / LR. Otherwise, 10 Mbit/s links do not transfer data.
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit 956407292dc5fd41f2d8c7cc7e9ec77eb6444c1e)