[llvm] [offload][lit] Run check-offload as part of check-all (PR #212500)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `intel-sycl-gpu` running on `intel-sycl-gpu-01` while building `offload` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/225/builds/13849

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

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'libomptarget :: spirv64-intel :: mapping/duplicate_mappings_1.cpp' FAILED ********************
Exit Code: 127

Command Output (stdout):
--
# RUN: at line 2
/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/clang++ -fopenmp    -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/offload/test -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib/x86_64-unknown-linux-gnu -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib/x86_64-unknown-linux-gnu -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src  -Wl,-rpath,/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib  -fopenmp-targets=spirv64-intel /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/offload/test/mapping/duplicate_mappings_1.cpp -o /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/offload/test/spirv64-intel/mapping/Output/duplicate_mappings_1.cpp.tmp -Wno-openmp-mapping && /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/offload/test/spirv64-intel/mapping/Output/duplicate_mappings_1.cpp.tmp
# executed command: /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/clang++ -fopenmp -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/offload/test -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib/x86_64-unknown-linux-gnu -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib/x86_64-unknown-linux-gnu -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./lib -fopenmp-targets=spirv64-intel /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/offload/test/mapping/duplicate_mappings_1.cpp -o /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/offload/test/spirv64-intel/mapping/Output/duplicate_mappings_1.cpp.tmp -Wno-openmp-mapping
# executed command: /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/offload/test/spirv64-intel/mapping/Output/duplicate_mappings_1.cpp.tmp
# .---command stderr------------
# | Could not create process (/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/offload/test/spirv64-intel/mapping/Output/duplicate_mappings_1.cpp.tmp) due to [Errno 2] No such file or directory: '/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/offload/test/spirv64-intel/mapping/Output/duplicate_mappings_1.cpp.tmp'
# `-----------------------------
# error: command failed with exit status: 127

--

********************


```

</details>

https://github.com/llvm/llvm-project/pull/212500