Add AMD Family 10 support to cpu folder

Add AMD Family 10 support to cpu folder

This change adds the AMD Family 10 cpu support to the
cpu folder.  It also updates the makefiles of the Families
12 and 14 to take advantage of a pair of shared files that
are moved to the cpu/agesa folder.

Change-Id: Ibd3a50ea7a3028bd6a2d2583f021506b73e2fce2
Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/97
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>