Add copyright dates to all scripts

To find any files with a missing copyright declaration, use the following script:

# ========================
#!/bin/sh

# Find files with copyright declarations, and list their file extensions
exts=$(grep -Ril --exclude-dir .git 'Copyright.*Arm' | sed '
  s/.*\./-name "*./
  s/$/"/
' | sort -u | sed -n '
  :l
    N
    $!bl
  s/\n/ -o /gp
')

# Find files with file extensions that ususally include copyright extensions,
# but don't include a copyright declaration themselves.
eval "find -path './.git' -prune -o\
  ! -path './tests/data_files/format_pkcs12.fmt'\
  ! -path './programs/psa/psa_constant_names_generated.c'\
  '(' $exts ')' -print" | xargs grep -Li 'Copyright.*Arm'
# ========================

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/tests/scripts/recursion.pl b/tests/scripts/recursion.pl
index 431e592..c80666e 100755
--- a/tests/scripts/recursion.pl
+++ b/tests/scripts/recursion.pl
@@ -7,6 +7,10 @@
 # an unbounded way, those functions should use interation instead.
 #
 # Typical usage: scripts/recursion.pl library/*.c
+#
+# Copyright (C) 2014-2015, Arm Limited, All Rights Reserved
+#
+# This file is part of Mbed TLS (https://tls.mbed.org)
 
 use warnings;
 use strict;