[PATCH] Fix powerpc-power8.exp test with new mnemonics

[Carl Love]

Will:

On Thu, 2021-06-17 at 10:15 -0500, will schmidt wrote:
> > The following patch updates the powerpc-power8.exp test to use the
> > new
> > mnemonics. The test fixes two regression test failures.
> > 
> > The patch has been tested on Power 9.
> 
> Presumably this was also tested on power8.  

Sorry, yes it was also tested on Power 8 and passes.  Sorry I missed
saying that.

                     Carl Love