[compiler-rt] [llvm] Fix some small typos in compiler-rt. NFC (PR #133388)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-arm64-windows-msvc` running on `linaro-armv8-windows-msvc-04` while building `compiler-rt,llvm` at step 2 "clean stage 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/161/builds/5105

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (clean stage 1) failure: clean (failure)
rm: cannot remove 'stage1/tools/clang/test/Headers': Device or resource busy
Step 5 (ninja check 1) failure: 1200 seconds without output running [b'ninja', b'check-all'], attempting to kill
...
UNSUPPORTED: mlgo-utils :: corpus/extract_ir_test.py (87962 of 87972)
UNSUPPORTED: mlgo-utils :: corpus/make_corpus_script.test (87963 of 87972)
UNSUPPORTED: mlgo-utils :: corpus/make_corpus_test.py (87964 of 87972)
UNSUPPORTED: mlgo-utils :: pytype.test (87965 of 87972)
PASS: lld :: wasm/weak-undefined.s (87966 of 87972)
PASS: lld :: wasm/wrap.s (87967 of 87972)
PASS: lld :: wasm/weak-undefined-pic.s (87968 of 87972)
PASS: lld :: wasm/unresolved-symbols.s (87969 of 87972)
PASS: lld :: wasm/whole-archive.test (87970 of 87972)
PASS: lld :: wasm/why-extract.s (87971 of 87972)
command timed out: 1200 seconds without output running [b'ninja', b'check-all'], attempting to kill
program finished with exit code 1
elapsedTime=5128.034972

```

</details>

https://github.com/llvm/llvm-project/pull/133388