AMD boards: Fix typos

Change-Id: I92f3877b58d9acaa9578337e66107e9cd9f46043
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6110
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/mainboard/amd/olivehill/acpi_tables.c b/src/mainboard/amd/olivehill/acpi_tables.c
index 03e68ab..ac5a890 100644
--- a/src/mainboard/amd/olivehill/acpi_tables.c
+++ b/src/mainboard/amd/olivehill/acpi_tables.c
@@ -59,7 +59,7 @@
 	/* 0: mean bus 0--->ISA */
 	/* 0: PIC 0 */
 	/* 2: APIC 2 */
-	/* 5 mean: 0101 --> Edige-triggered, Active high */
+	/* 5 mean: 0101 --> Edge-triggered, Active high */
 
 	/* create all subtables for processors */
 	current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, 0xff, 5, 1);