[coreboot] [PATCH] move PHY fine tune to devicetree.cb

[Rudolf Marek]

Hello,

Following patch moves the PHY fine tune settings into devicetree.cb. Suited for 
AMD SB7xx. Please change the default settings for Gigabyte and Jetway.

Signed-off-by: Rudolf Marek

Untested I can test on monday evening.

Thanks,
Rudolf