[Bug testsuite/125965] rs6000: Few Power10 big-endian tests fail due to endian-dependent expected values

[mmatti.gnu at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125965
Bug 125965 depends on bug 127278, which changed state.

Bug 127278 Summary: [16,17] rs6000: gcc.target/powerpc/vec-msumc.c fails on 
ppc64 -m32
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127278

           What    |Removed                     |Added
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             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED