Update broad/short histology matching in base histologies file

[kgaonkar6]

What data file(s) does this issue pertain to?

Update base histologies file with latest pathology_diagnosis_for_subtyping and pathology_free_text_diagnosis_for_subtyping

What release are you using?

v20

Put a link to the relevant section of the OpenPBTA-manuscript here.

Put your question or report your issue here.

We have some changes in matching pathology_free_text_diagnosis and pathology_diagnosis to broad/short histologies that need to be reflected in the base histologies file.

[kgaonkar6]

Closing with v21 release in #1157