AMD southbridges: Move HAVE_HARD_RESET

All 3 boards with AGESA_HUDSON had HAVE_HARD_RESET with the reset.c
file already placed under southbridge/.

All 15 boards with CIMX_SBx00 had HAVE_HARD_RESET with functionally
identical reset.c file under mainboard/. Move those files under
respective southbridge/.

Change-Id: Icfda51527ee62e578067a7fc9dcf60bc9860b269
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3486
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
diff --git a/src/southbridge/amd/cimx/sb800/Makefile.inc b/src/southbridge/amd/cimx/sb800/Makefile.inc
index 524c2d3..831cc2e 100644
--- a/src/southbridge/amd/cimx/sb800/Makefile.inc
+++ b/src/southbridge/amd/cimx/sb800/Makefile.inc
@@ -23,9 +23,11 @@
 romstage-y += cfg.c
 romstage-y += early.c
 romstage-y += smbus.c
+romstage-y += reset.c
 
 ramstage-y += cfg.c
 ramstage-y += late.c
+ramstage-y += reset.c
 
 ramstage-$(CONFIG_SB800_MANUAL_FAN_CONTROL) += fan.c
 ramstage-$(CONFIG_SB800_IMC_FAN_CONTROL) += fan.c