AMD platforms: Fix ASL comment that implies "\_SB" is southbridge

Change-Id: I6ee86396a1c5aaee248a275b42da801cedace586
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/22578
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
diff --git a/src/southbridge/amd/pi/hudson/acpi/fch.asl b/src/southbridge/amd/pi/hudson/acpi/fch.asl
index 5f00436..2586dd4 100644
--- a/src/southbridge/amd/pi/hudson/acpi/fch.asl
+++ b/src/southbridge/amd/pi/hudson/acpi/fch.asl
@@ -14,7 +14,7 @@
  * GNU General Public License for more details.
  */
 
-/* South Bridge */
+/* System Bus */
 /*  _SB.PCI0 */
 
 /* Operating System Capabilities Method */