scripts: logging/dictionary/sys-t: remove escape between CDATA

This removes escape from generate XML_CATALOG_EACH string, because
the string between CDATA tag need to be treated as normal text.

Signed-off-by: Fang Huang <fang.huang@intel.com>

scripts/logging/dictionary/dictionary_parser/mipi_syst.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (c) 2022 Intel Corporation
+# Copyright (c) 2022 - 2023 Intel Corporation
 #
 # SPDX-License-Identifier: Apache-2.0
 
@@ -106,7 +106,7 @@ def __gen_syst_catalog(database):
         fmt = XML_CATALOG32_EACH
 
     for addr, one_str in database.get_string_mappings().items():
-        xml += fmt.format(addr, escape(one_str))
+        xml += fmt.format(addr, one_str)
 
     if database.is_tgt_64bit():
         xml += XML_CATALOG64_FOOTER