Fix buildCommonTypesStructureFile.py script

The PFW script buildCommonTypesStructureFile.py got broken
by the change which had moved many enums to audio-hal-enums.h
header. This change makes necessary adjustments to restore
its functionality and preserve the generated PFW config file
contents.

Bug: 142480271
Bug: 172641529
Test: m
Test: atest libmedia_helper_tests
Test: diff vendor/etc/parameter-framework contents for isto2020
Change-Id: I15db2ce6bf9c408b96b6921a45093e2849826e24