UPSTREAM: AGESA: Move amd_initmmio() call

Function enables PCI MMCONF and XIP cache, it needs
to be called before giving platform any chance of
calling any PCI access functions.

BUG=none
BRANCH=none
TEST=none

Change-Id: Ib1e1131ad5e149a81da19bb6cdb2945450ea9b60
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 13cf135871
Original-Change-Id: Ic044d4df7b93667fa987c29c810d0bd826af87ad
Original-Signed-off-by: Kysti Mlkki <kyosti.malkki@gmail.com>
Original-Reviewed-on: https://review.coreboot.org/18623
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Philippe Mathieu-Daud <philippe.mathieu.daude@gmail.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/471447

src/include/cpu/amd/car.h

@@ -16,4 +16,6 @@ void cache_as_ram_new_stack(void);
 void disable_cache_as_ram(void);
 #endif
 
+void asmlinkage early_all_cores(void);
+
 #endif