Make #include guard naming consistent

Change-Id: Ie13e8af0bb74ed290f811dcad64ad06c9d8cb4fa
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/2956
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>

src/target/nds32_v2.h

@@ -15,8 +15,9 @@
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
-#ifndef __NDS32_V2_H__
-#define __NDS32_V2_H__
+
+#ifndef OPENOCD_TARGET_NDS32_V2_H
+#define OPENOCD_TARGET_NDS32_V2_H
 
 #include "nds32.h"
 
@@ -38,5 +39,4 @@ static inline struct nds32_v2_common *target_to_nds32_v2(struct target *target)
 	return container_of(target->arch_info, struct nds32_v2_common, nds32);
 }
 
-
-#endif	/* __NDS32_V2_H__ */
+#endif /* OPENOCD_TARGET_NDS32_V2_H */