northbridge/amd/amdht: Add support for HT3 2.8GHz and up link frequencies

Change-Id: Ifa1592d26ba7deb034046fd3f2a15149117d9a76
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/12027
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
7 files changed