Extensive testing on the board showed that ethernet does
not work when forced to 10Mbps.
Trial-and-error revealed that the correct PLL value
should be altered to 0x00001313 (iso 0x00001616)
The change is done for this specific board only as I do not have
other boards using this specific SoC.
The board now works correctly in 1000, 100 and 10 Mode
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>