Fix MISRA rule 8.4 Part 2

Rule 8.4: A compatible declaration shall be visible when
          an object or function with external linkage is defined

Fixed for:
	make DEBUG=1 PLAT=juno LOG_LEVEL=50 all

Change-Id: Ic8f611da734f356566e8208053296e6c62b54709
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
diff --git a/plat/arm/board/juno/juno_topology.c b/plat/arm/board/juno/juno_topology.c
index b9412b1..5f031c8 100644
--- a/plat/arm/board/juno/juno_topology.c
+++ b/plat/arm/board/juno/juno_topology.c
@@ -1,11 +1,13 @@
 /*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
 #include <arm_def.h>
+#include <css_pm.h>
 #include <plat_arm.h>
+#include <platform.h>
 #include "juno_def.h"
 
 /*
@@ -23,7 +25,7 @@
  * i.e. CLUSTER1 CPUs are allocated indices from 0 to 3 and the higher
  * indices for CLUSTER0 CPUs.
  */
-const unsigned char juno_power_domain_tree_desc[] = {
+static const unsigned char juno_power_domain_tree_desc[] = {
 	/* No of root nodes */
 	JUNO_PWR_DOMAINS_AT_MAX_PWR_LVL,
 	/* No of children for the root node */