Rollup merge of rust-lang#138694 - LuuuXXX:fix-platform-support-book, r=jieyouxu

Fix: add ohos target notes

Author: jieyouxu

src/doc/rustc/src/platform-support.md

@@ -89,11 +89,11 @@ target | notes
 -------|-------
 `aarch64-pc-windows-msvc` | ARM64 Windows MSVC
 `aarch64-unknown-linux-musl` | ARM64 Linux with musl 1.2.3
-[`aarch64-unknown-linux-ohos`](platform-support/openharmony.md) | ✓ | ARM64 OpenHarmony
+[`aarch64-unknown-linux-ohos`](platform-support/openharmony.md) | ARM64 OpenHarmony
 `arm-unknown-linux-gnueabi` | Armv6 Linux (kernel 3.2, glibc 2.17)
 `arm-unknown-linux-gnueabihf` | Armv6 Linux, hardfloat (kernel 3.2, glibc 2.17)
 `armv7-unknown-linux-gnueabihf` | Armv7-A Linux, hardfloat (kernel 3.2, glibc 2.17)
-[`armv7-unknown-linux-ohos`](platform-support/openharmony.md) | ✓ | Armv7-A OpenHarmony
+[`armv7-unknown-linux-ohos`](platform-support/openharmony.md) | Armv7-A OpenHarmony
 [`loongarch64-unknown-linux-gnu`](platform-support/loongarch-linux.md) | LoongArch64 Linux, LP64D ABI (kernel 5.19, glibc 2.36)
 [`loongarch64-unknown-linux-musl`](platform-support/loongarch-linux.md) | LoongArch64 Linux, LP64D ABI (kernel 5.19, musl 1.2.5)
 `powerpc-unknown-linux-gnu` | PowerPC Linux (kernel 3.2, glibc 2.17)
@@ -106,7 +106,7 @@ target | notes
 [`x86_64-unknown-freebsd`](platform-support/freebsd.md) | 64-bit x86 FreeBSD
 [`x86_64-unknown-illumos`](platform-support/illumos.md) | illumos
 `x86_64-unknown-linux-musl` | 64-bit Linux with musl 1.2.3
-[`x86_64-unknown-linux-ohos`](platform-support/openharmony.md) | ✓ | x86_64 OpenHarmony
+[`x86_64-unknown-linux-ohos`](platform-support/openharmony.md) | x86_64 OpenHarmony
 [`x86_64-unknown-netbsd`](platform-support/netbsd.md) | NetBSD/amd64
 
 ## Tier 2 without Host Tools