sis/sis966: Move HAVE_HARD_RESET to southbridge

No in-tree board using that chipset has it not selected, so move
selection from boards to southbridge.

Change-Id: I9762ef01fc10c453ef643599c1c5dc8ee78081c3
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/663
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
diff --git a/src/southbridge/sis/sis966/Kconfig b/src/southbridge/sis/sis966/Kconfig
index 3cee5b3..03dd6b1 100644
--- a/src/southbridge/sis/sis966/Kconfig
+++ b/src/southbridge/sis/sis966/Kconfig
@@ -2,6 +2,7 @@
 	bool
 	select IOAPIC
 	select HAVE_USBDEBUG
+	select HAVE_HARD_RESET
 
 config BOOTBLOCK_SOUTHBRIDGE_INIT
 	string