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/drivers/auth/auth_mod.c b/drivers/auth/auth_mod.c
index 1cea60b..eb537b6 100644
--- a/drivers/auth/auth_mod.c
+++ b/drivers/auth/auth_mod.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -30,7 +30,7 @@
 
 /* Pointer to CoT */
 extern const auth_img_desc_t *const cot_desc_ptr;
-extern unsigned int auth_img_flags[];
+extern unsigned int auth_img_flags[MAX_NUMBER_IDS];
 
 static int cmp_auth_param_type_desc(const auth_param_type_desc_t *a,
 		const auth_param_type_desc_t *b)