hw/centaur: Remove space before tab in comment

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

hw/centaur.c

@@ -4,7 +4,7 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- * 	http://www.apache.org/licenses/LICENSE-2.0
+ *	http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,