Fix MISRA defects in workaround and errata framework

No functional changes.

Change-Id: Iaab0310848be587b635ce5339726e92a50f534e0
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/include/lib/cpus/wa_cve_2018_3639.h b/include/lib/cpus/wa_cve_2018_3639.h
index 36546f7..e37db37 100644
--- a/include/lib/cpus/wa_cve_2018_3639.h
+++ b/include/lib/cpus/wa_cve_2018_3639.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __WA_CVE_2018_3639_H__
-#define __WA_CVE_2018_3639_H__
+#ifndef WA_CVE_2018_3639_H
+#define WA_CVE_2018_3639_H
 
 void *wa_cve_2018_3639_get_disable_ptr(void);
 
-#endif /* __WA_CVE_2018_3639_H__ */
+#endif /* WA_CVE_2018_3639_H */