Update generate_errors.pl for error header split

This commit updates generated_errors.pl to create the error.c file and
correctly include the error_common.h header file, which contains error
code definitions.

Signed-off-by: Harry Ramsey <harry.ramsey@arm.com>
diff --git a/scripts/generate_errors.pl b/scripts/generate_errors.pl
index df546d7..147ecdc 100755
--- a/scripts/generate_errors.pl
+++ b/scripts/generate_errors.pl
@@ -24,7 +24,7 @@
     $crypto_include_dir = 'tf-psa-crypto/drivers/builtin/include/mbedtls';
     $tls_include_dir = 'include/mbedtls';
     $data_dir = 'scripts/data_files';
-    $error_file = 'tf-psa-crypto/drivers/builtin/src/error.c';
+    $error_file = 'library/error.c';
 
     unless( -d $crypto_include_dir && -d $tls_include_dir && -d $data_dir ) {
         chdir '..' or die;
@@ -37,7 +37,7 @@
 
 my @low_level_modules = qw( AES ARIA ASN1 BASE64 BIGNUM
                             CAMELLIA CCM CHACHA20 CHACHAPOLY CMAC CTR_DRBG DES
-                            ENTROPY ERROR GCM HKDF HMAC_DRBG LMS MD5
+                            ENTROPY ERROR_COMMON GCM HKDF HMAC_DRBG LMS MD5
                             NET OID PBKDF2 PLATFORM POLY1305 RIPEMD160
                             SHA1 SHA256 SHA512 SHA3 THREADING );
 my @high_level_modules = qw( CIPHER DHM ECP MD
@@ -121,6 +121,7 @@
     $module_name = "BIGNUM" if ($module_name eq "MPI");
     $module_name = "CTR_DRBG" if ($module_name eq "CTR");
     $module_name = "HMAC_DRBG" if ($module_name eq "HMAC");
+    $module_name = "ERROR_COMMON" if ($module_name eq "ERROR");
 
     my $define_name = $module_name;
     $define_name = "X509_USE,X509_CREATE" if ($define_name eq "X509");