I was going to try enabling TPM 2.0 on my P9X79-Pro, but for some reason the pro version does not have a TPM connector while the non pro version of this motherboard does have.
Take a look at Asus H97M-E 2702 BIOS and on any BIOS before that, you can spot in the DSDT changes they have made to support TPM 2.0 modules on top of the support for TPM 1.2 that already existed.
Seems a lot like the changes you have made (there are more TPM changes that were not shown in this picture).
Thought I’d share if anyone else wants to give it a go. Might even try myself sometime.