[llvm] [llvm] Fix bazel build after 185a23e. (PR #151939)

[Bart Chrzaszcz via llvm-commits]

https://github.com/bartchr808 created https://github.com/llvm/llvm-project/pull/151939

Was failing with

```
ERROR: /var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/c9d34ded3a9d94cc250207948aceadfc/external/llvm-project/llvm/unittests/BUILD.bazel:505:8: Compiling llvm/unittests/Frontend/PropertySetRegistryTest.cpp failed: (Exit 1): clang failed: error executing CppCompile command (from target @@llvm-project//llvm/unittests:frontend_tests) /usr/lib/llvm-18/bin/clang -U_FORTIFY_SOURCE -fstack-protector -Wall -Wthread-safety -Wself-assign -Wunused-but-set-parameter -Wno-free-nonheap-object -fcolor-diagnostics -fno-omit-frame-pointer ... (remaining 151 arguments skipped)
--
  |  
  | Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
  | external/llvm-project/llvm/unittests/Frontend/PropertySetRegistryTest.cpp:10:10: error: module llvm-project//llvm/unittests:frontend_tests does not depend on a module exporting 'llvm/Frontend/Offloading/PropertySet.h'
  | 10 \| #include "llvm/Frontend/Offloading/PropertySet.h"
```

>From f5e39a116882ed15f27008fced3824512f69f200 Mon Sep 17 00:00:00 2001
From: Bart Chrzaszcz <bartchr at google.com>
Date: Mon, 4 Aug 2025 11:44:16 +0100
Subject: [PATCH] [llvm] Fix bazel build after 185a23e.

---
 utils/bazel/llvm-project-overlay/llvm/unittests/BUILD.bazel | 1 +
 1 file changed, 1 insertion(+)

diff --git a/utils/bazel/llvm-project-overlay/llvm/unittests/BUILD.bazel b/utils/bazel/llvm-project-overlay/llvm/unittests/BUILD.bazel
index c5fe783fe7bcd..dc8aa406fb2f6 100644
--- a/utils/bazel/llvm-project-overlay/llvm/unittests/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/llvm/unittests/BUILD.bazel
@@ -513,6 +513,7 @@ cc_test(
         "//llvm:Analysis",
         "//llvm:Core",
         "//llvm:FrontendHLSL",
+        "//llvm:FrontendOffloading",
         "//llvm:FrontendOpenACC",
         "//llvm:FrontendOpenMP",
         "//llvm:Passes",