[clang] Added TypeKind.FLOAT16 for 32 in cindex.py (PR #142634)

[Vlad Serebrennikov via cfe-commits]

Endilll wrote:

> ⚠️ We detected that you are using a GitHub private e-mail address to contribute to the repo. Please turn off [Keep my email addresses private](https://github.com/settings/emails) setting in your account. See [LLVM Discourse](https://discourse.llvm.org/t/hidden-emails-on-github-should-we-do-something-about-it) for more information.

@zokrezyl Merge of the PR is blocked on this. Let us know when you made your email public.

https://github.com/llvm/llvm-project/pull/142634