X60/T60: fix return value of mainboard_io_trap_handler()

The handler should return 1 if it handled the request. The current
code returns 0, which causes 'Unknown function' logs.

Change-Id: Ic296819a5f8c6f1f97b7d47148182226684882a0
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/29
Tested-by: build bot (Jenkins)

src/mainboard/lenovo/t60/mainboard_smi.c

@@ -68,11 +68,11 @@ int mainboard_io_trap_handler(int smif)
 		break;
 
 	default:
-		return 1;
+		return 0;
 	}
 
-	/* On success, the IO Trap Handler returns 0
-	 * On failure, the IO Trap Handler returns a value != 0 */
-	return 0;
+	/* On success, the IO Trap Handler returns 1
+	 * On failure, the IO Trap Handler returns a value != 1 */
+	return 1;
 }
 

src/mainboard/lenovo/x60/mainboard_smi.c

@@ -68,10 +68,10 @@ int mainboard_io_trap_handler(int smif)
 		break;
 
 	default:
-		return 1;
+		return 0;
 	}
 
-	/* On success, the IO Trap Handler returns 0
-	 * On failure, the IO Trap Handler returns a value != 0 */
-	return 0;
+	/* On success, the IO Trap Handler returns 1
+	 * On failure, the IO Trap Handler returns a value != 1 */
+	return 1;
 }