test_cache_CacheShm fails on ppc64le architecture

[jeredfloyd]

When building for at least Fedora (any current release) or RHEL 10 on the ppc64le architecture, test_cache_CacheShm fails:

 25/167 Test  #33: test_cache_CacheShm ....................***Failed    0.03 sec
Randomness seeded to: 3178218925
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CacheShm is a Catch2 v3.9.1 host application.
Run with -? for options
-------------------------------------------------------------------------------
CacheShm purge sweeps by name when the control layout is foreign
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/builddir/build/BUILD/trafficserver-10.2.0/src/iocore/cache/unit_tests/test_CacheShm.cc:315
...............................................................................
/builddir/build/BUILD/trafficserver-10.2.0/src/iocore/cache/unit_tests/test_CacheShm.cc:330: FAILED:
  CHECK( report.table_untrusted )
with expansion:
  false
/builddir/build/BUILD/trafficserver-10.2.0/src/iocore/cache/unit_tests/test_CacheShm.cc:331: FAILED:
  CHECK_FALSE( segment_exists(stripe_name) )
with expansion:
  !true