mbedtls: add pkcs7 in generate_errors.pl

This patch updates the generate_errors.pl to handle
PKCS7 code as well.

Signed-off-by: Nayna Jain <nayna@linux.ibm.com>
diff --git a/scripts/generate_errors.pl b/scripts/generate_errors.pl
index 0a03f02..6ecd0ac 100755
--- a/scripts/generate_errors.pl
+++ b/scripts/generate_errors.pl
@@ -52,7 +52,7 @@
                             SHA1 SHA256 SHA512 THREADING );
 my @high_level_modules = qw( CIPHER DHM ECP MD
                              PEM PK PKCS12 PKCS5
-                             RSA SSL X509 );
+                             RSA SSL X509 PKCS7 );
 
 undef $/;
 
@@ -136,6 +136,7 @@
     $define_name = "ASN1_PARSE" if ($define_name eq "ASN1");
     $define_name = "SSL_TLS" if ($define_name eq "SSL");
     $define_name = "PEM_PARSE,PEM_WRITE" if ($define_name eq "PEM");
+    $define_name = "PKCS7" if ($define_name eq "PKCS7");
 
     my $include_name = $module_name;
     $include_name =~ tr/A-Z/a-z/;