Support for tvOS arm64e target

[bitxeno]

Currently, rust has support for arm64e-apple-ios and arm64e-apple-darwin targets in PR #115526. Hope to also add support for tvOS arm64e target.

#73628

[thejpster]

Just a note I had strong opinions about the names of the existing targets that I think we should address before adding new ones.

[madsmtm]

This was fixed by #130614. The tvOS targets still use the arm64e-apple-* naming scheme.