Change in coreboot[master]: soc/amd/common: Move AGESA related source files

[Richard Spiegel (Code Review)]

Richard Spiegel has posted comments on this change. ( https://review.coreboot.org/22792 )

Change subject: soc/amd/common: Move AGESA related source files
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Patch Set 2:

Had to do in 2 patches, first one just amd_late_init.c which had formatting OK. If I used the -n option when committing, Change-Id would not be generated and I could not push. So I needed a initial small commit which had good formatting in order not to use the -n option, do a commit generating the Change-Id, then do an amend with the -n option.