[llvm] X86: Mark the tile register defs of PLDTILECFGV dead (PR #228361)

[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 `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/225/builds/20379

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

```
Step 6 (test-build-unified-tree-check-all) failure: 1200 seconds without output running [b'ninja', b'check-all'], attempting to kill
...
PASS: libFuzzer-x86_64-default-Linux :: value-profile-div.test (113883 of 113894)
PASS: libFuzzer-x86_64-default-Linux :: value-profile-load.test (113884 of 113894)
PASS: libomp :: worksharing/for/omp_collapse_many_GELTGT_int.c (113885 of 113894)
PASS: libomp :: worksharing/for/omp_collapse_many_GTGEGT_int.c (113886 of 113894)
PASS: libomp :: worksharing/for/omp_collapse_many_LTLEGE_int.c (113887 of 113894)
XFAIL: libomp :: worksharing/for/omp_collapse_many_int.c (113888 of 113894)
PASS: libFuzzer-x86_64-default-Linux :: fork_corpus_groups.test (113889 of 113894)
PASS: libFuzzer-x86_64-default-Linux :: full-coverage-set.test (113890 of 113894)
PASS: libFuzzer-x86_64-default-Linux :: fork-ubsan.test (113891 of 113894)
PASS: libFuzzer-x86_64-default-Linux :: fork.test (113892 of 113894)
command timed out: 1200 seconds without output running [b'ninja', b'check-all'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1322.047790

```

</details>

https://github.com/llvm/llvm-project/pull/228361