[compiler-rt] [llvm] [dfsan] Fix Endianess issue (PR #162881)

[via llvm-commits]

anoopkg6 wrote:

I think XFAIL is not needed for this test. This is a subset of already existing test origin_ldst.c in dfsan tests. Moreover, DFSan has not yet been enabled for SystemZ.

https://github.com/llvm/llvm-project/pull/162881