scripts: extract_dts_include: update to match new bindings path

    def extractFile(self, filename):

        filepath = os.path.join(os.path.dirname(self._root), filename)

        if not os.path.isfile(filepath):

            # we need to look in common directory

            # take path and back up 2 directories and tack on '/common/yaml'

            # we need to look in bindings/* directories

            # take path and back up 1 directory and parse in '/bindings/*'

            filepath = os.path.dirname(self._root).split('/')

            filepath = '/'.join(filepath[:-2])

            filepath = os.path.join(filepath + '/common/yaml', filename)

            filepath = '/'.join(filepath[:-1])

            for root, dirnames, file in os.walk(filepath):

                if fnmatch.filter(file, filename):

                    filepath = os.path.join(root, filename)

        with open(filepath, 'r') as f:

            return yaml.load(f, Loader)