[clang] [NFC][Clang] Add missing LLVM licence header (PR #181445)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Alexey Bader (bader)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/181445.diff


1 Files Affected:

- (modified) clang/lib/Basic/OffloadArch.cpp (+7) 


``````````diff
diff --git a/clang/lib/Basic/OffloadArch.cpp b/clang/lib/Basic/OffloadArch.cpp
index e1f9641383ce1..01d8dd8be99d1 100644
--- a/clang/lib/Basic/OffloadArch.cpp
+++ b/clang/lib/Basic/OffloadArch.cpp
@@ -1,3 +1,10 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
 #include "clang/Basic/OffloadArch.h"
 
 #include "llvm/ADT/STLExtras.h"

``````````

</details>


https://github.com/llvm/llvm-project/pull/181445