[clang] [clang] Fix size and alignment of packed sub-byte integer vectors (PR #161796)

[Eli Friedman via cfe-commits]

https://github.com/efriedma-quic commented:

I guess this only comes up with _BitInt vectors.

Do we need similar checks anywhere else we check isPackedVectorBoolType?

https://github.com/llvm/llvm-project/pull/161796