Add more scalar types to debug buffer parser (#3643)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/3643

The debug buffer parser for ETDump did not handle a few different dtypes that we
had in our workflow, such as uint8. I figured I should add all of the easy dtypes to this
statement, since there didn't seem to be anything special about it.

Reviewed By: tarun292, Olivia-liu

Differential Revision: D57363560

fbshipit-source-id: 83ff1a737a04368b0985e61e7c8551720ad1c5a4