Update year in copyright text to 2014

Change-Id: Ic7fb61aabae1d515b9e6baf3dd003807ff42da60
diff --git a/lib/stdlib/strchr.c b/lib/stdlib/strchr.c
index 36d273b..4247dcd 100644
--- a/lib/stdlib/strchr.c
+++ b/lib/stdlib/strchr.c
@@ -28,7 +28,7 @@
  */
 
 /*
- * Portions copyright (c) 2013, ARM Limited and Contributors.
+ * Portions copyright (c) 2013-2014, ARM Limited and Contributors.
  * All rights reserved.
  */