scripts: dictionary: rename parser module to avoid name collision

The parser module collides with a module in python called parser.
Doesn't seem to be a problem in Linux but for some reason the
search/include order in Windows causes python to import the wrong
parser. The change is to rename the module to dictionary_parser
to avoid the name space collision.

fixes: #36339

Signed-off-by: David Leach <david.leach@nxp.com>