Rename {CPU|NB|SB}/amd/*_wrapper folders

This change renames the cpu/amd/agesa_wrapper, northbridge/
amd/agesa_wrapper, and southbridge/amd/cimx_wrapper folders
to {cpu|NB}/amd/agesa and {SB}/amd/agesa to shorten and
simplify the folder names.
There is also a fix to vendorcode/amd/agesa/lib/amdlib.c to
append "ull" to a trio of 64-bit hexadecimal constants to
allow abuild to run successfully.

Change-Id: I2455e0afb0361ad2e11da2b869ffacbd552cb715
Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/51
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
diff --git a/src/cpu/amd/Kconfig b/src/cpu/amd/Kconfig
index 0e26834..2f4ff33 100644
--- a/src/cpu/amd/Kconfig
+++ b/src/cpu/amd/Kconfig
@@ -22,4 +22,4 @@
 
 source src/cpu/amd/sc520/Kconfig
 
-source src/cpu/amd/agesa_wrapper/Kconfig
+source src/cpu/amd/agesa/Kconfig