Integrate LLVM at llvm/llvm-project@ffd0b31c7cba

Updates LLVM usage to match
[ffd0b31c7cba](https://github.com/llvm/llvm-project/commit/ffd0b31c7cba)

PiperOrigin-RevId: 329466048
diff --git a/SUBMODULE_VERSIONS b/SUBMODULE_VERSIONS
index f07fe22..ceb9894 100644
--- a/SUBMODULE_VERSIONS
+++ b/SUBMODULE_VERSIONS
@@ -4,7 +4,7 @@
 a5d9d0f7d368054fd1691aedf1db4116efcc233e third_party/flatbuffers
 4fb0ff7069bd88ee85902f4d0bb62794e5f6d021 third_party/flatcc
 f2fb48c3b3d79a75a88a99fba6576b25d42ec528 third_party/googletest
-1d3d9b9cd808ef37f3dacd3ada81bff1353cd24b third_party/llvm-project
+ffd0b31c7cbaa8322d2963afe6ace4e3a0889ddb third_party/llvm-project
 17b12a4481daa150e2d1ea3ada086b551b856707 third_party/marl
 560cd8c94495409cbeacb31c0b907b5068adc45b third_party/mlir-emitc
 d8c7ee00a687ac369e62e2032514a93a9b413502 third_party/pybind11