Fix MISRA rule 8.3 Part 4

Rule 8.3: All declarations of an object or function shall
          use the same names and type qualifiers

Fixed for:
	make DEBUG=1 PLAT=fvp SPD=tspd TRUSTED_BOARD_BOOT=1 \
	     GENERATE_COT=1 ARM_ROTPK_LOCATION=devel_rsa \
	     ROT_KEY=arm_rotprivk_rsa.pem MBEDTLS_DIR=mbedtls all

Change-Id: Ia34fe1ae1f142e89c9a6c19831e3daf4d28f5831
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
diff --git a/include/drivers/auth/auth_mod.h b/include/drivers/auth/auth_mod.h
index bd65098..74fc15f 100644
--- a/include/drivers/auth/auth_mod.h
+++ b/include/drivers/auth/auth_mod.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -12,6 +12,7 @@
 #include <auth_common.h>
 #include <cot_def.h>
 #include <img_parser_mod.h>
+#include <tbbr_img_def.h>
 
 /*
  * Image flags
@@ -41,7 +42,7 @@
 #define REGISTER_COT(_cot) \
 	const auth_img_desc_t *const cot_desc_ptr = \
 			(const auth_img_desc_t *const)&_cot[0]; \
-	unsigned int auth_img_flags[sizeof(_cot)/sizeof(_cot[0])]
+	unsigned int auth_img_flags[MAX_NUMBER_IDS]
 
 #endif /* TRUSTED_BOARD_BOOT */