cimx/sb800 boards: Don't require ide.asl on boards without IDE

Not all boards which use the AMD cimx/sb800 southbridge have IDE.
However, the southbridge's asl included an 'ide.asl' file which had to
be present in $(mainboard_dir)/acpi.

Address this issue by including ide.asl only in boards which have IDE,
and remove it from all other cimx/sb800 boards.

Change-Id: I57fcb4db9f85234b05ae1705ef81a576c478cee6
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5460
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
diff --git a/src/mainboard/amd/inagua/dsdt.asl b/src/mainboard/amd/inagua/dsdt.asl
index f7c7bb2..25520b2 100644
--- a/src/mainboard/amd/inagua/dsdt.asl
+++ b/src/mainboard/amd/inagua/dsdt.asl
@@ -47,6 +47,12 @@
 			/* Describe the AMD Fusion Controller Hub Southbridge */
 			#include <southbridge/amd/cimx/sb800/acpi/fch.asl>
 
+			/* Primary (and only) IDE channel */
+			Device(IDEC) {
+				Name(_ADR, 0x00140001)
+				#include "acpi/ide.asl"
+			} /* end IDEC */
+
 		}
 	}   /* End Scope(_SB)  */