[clang-tools-extra] [include-cleaner] rename enabled flags to `disable-*` (PR #132991)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

> @AaronBallman Do you think we need to work on something in CommandLine to make the deprecation of commands easier and standardised for all tools?

It might be nice, but isn't a requirement for this patch. We don't deprecate command line options too often, so it may not be worth the effort.

https://github.com/llvm/llvm-project/pull/132991