Auto merge of #137011 - LuuuXXX:promote-ohos-with-host-tools, r=Amanieu

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]

compiler/rustc_llvm/build.rs

@@ -241,7 +241,7 @@ fn main() {
         println!("cargo:rustc-link-lib=kstat");
     }
 
-    if (target.starts_with("arm") && !target.contains("freebsd"))
+    if (target.starts_with("arm") && !target.contains("freebsd")) && !target.contains("ohos")
         || target.starts_with("mips-")
         || target.starts_with("mipsel-")
         || target.starts_with("powerpc-")
@@ -371,6 +371,7 @@ fn main() {
         || target.contains("freebsd")
         || target.contains("windows-gnullvm")
         || target.contains("aix")
+        || target.contains("ohos")
     {
         "c++"
     } else if target.contains("netbsd") && llvm_static_stdcpp.is_some() {