Promote ohos targets to tier2 with host tools. ### What does this PR try to resolve? Try to promote the following [[Tier 2 without Host Tools](https://doc.rust-lang.org/rustc/platform-support.html#tier-2-without-host-tools)](https://doc.rust-lang.org/rustc/platform-support.html#tier-2-without-host-tools) targets to [[Tier 2 with Host Tools](https://doc.rust-lang.org/rustc/platform-support.html#tier-2-with-host-tools)](https://doc.rust-lang.org/rustc/platform-support.html#tier-2-with-host-tools): - `aarch64-unknown-linux-ohos` - `armv7-unknown-linux-ohos` - `x86_64-unknown-linux-ohos` ### More Information? see MCP: https://github.com/rust-lang/compiler-team/issues/811 ### Blockage to be solved? - [x] Submit an MCP - [x] Submit code of promote ohos targets - [x] Resolve related dependencies （`measureme`） The modified code of the measureme has been merged （see https://github.com/rust-lang/measureme/pull/238）. [done] The new version will was released (https://github.com/rust-lang/measureme/pull/240). [done]