mainboard/aopen: Use C89 comments style & remove commented code

Change-Id: I0014fc030888d71f7951c97bccc7cef0e1c45186
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16922
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/mainboard/aopen/dxplplusu/bus.h b/src/mainboard/aopen/dxplplusu/bus.h
index 96321c9..965b8b7 100644
--- a/src/mainboard/aopen/dxplplusu/bus.h
+++ b/src/mainboard/aopen/dxplplusu/bus.h
@@ -16,23 +16,24 @@
 #ifndef DXPLPLUSU_BUS_H_INCLUDED
 #define DXPLPLUSU_BUS_H_INCLUDED
 
-// These were determined by seeing how coreboot enumerates the various
-// PCI (and PCI-like) buses on the board.
+/* These were determined by seeing how coreboot enumerates the various
+ * PCI (and PCI-like) buses on the board.
+ */
 
 #define PCI_BUS_ROOT		0
-#define PCI_BUS_AGP		1	// AGP
-#define PCI_BUS_E7501_HI_B	2	// P64H2#1
-#define PCI_BUS_P64H2_B		3	// P64H2#1 bus B
-#define PCI_BUS_P64H2_A		4	// P64H2#1 bus A
-#define PCI_BUS_ICH4		5	// ICH4
+#define PCI_BUS_AGP		1	/* AGP */
+#define PCI_BUS_E7501_HI_B	2	/* P64H2#1 */
+#define PCI_BUS_P64H2_B		3	/* P64H2#1 bus B */
+#define PCI_BUS_P64H2_A		4	/* P64H2#1 bus A */
+#define PCI_BUS_ICH4		5	/* ICH4 */
 
-// IOAPIC addresses determined by coreboot enumeration.
-// Someday add functions to get APIC IDs and versions from the chips themselves.
+/* IOAPIC addresses determined by coreboot enumeration. */
+/* Someday add functions to get APIC IDs and versions from the chips themselves. */
 
 #define IOAPIC_ICH4		2
-#define IOAPIC_P64H2_BUS_B	3	// IOAPIC 3 at 02:1c.0  MBAR = fe300000 DataAddr = fe300010
-#define IOAPIC_P64H2_BUS_A	4	// IOAPIC 4 at 02:1e.0  MBAR = fe301000 DataAddr = fe301010
+#define IOAPIC_P64H2_BUS_B	3	/* IOAPIC 3 at 02:1c.0  MBAR = fe300000 DataAddr = fe300010 */
+#define IOAPIC_P64H2_BUS_A	4	/* IOAPIC 4 at 02:1e.0  MBAR = fe301000 DataAddr = fe301010 */
 
-#define INTEL_IOAPIC_NUM_INTERRUPTS 	24	// Both ICH-4 and P64-H2
+#define INTEL_IOAPIC_NUM_INTERRUPTS 	24	/* Both ICH-4 and P64-H2 */
 
 #endif