add ppc cpuid fix

[shirodkara]

add PPC CPU detection fix

[vchuravy]

@vtjnash what do we need to do carry this for Julia base?

[vtjnash]

Seems to be a backport of:

commit b12699b1efabfd241324f4ab6cfd6ce576db491e
Author: Richard Lau <rlau@redhat.com>
Date:   Wed Jul 7 21:19:47 2021 +0100

    linux: read CPU model information on ppc
    
    Fixes: https://github.com/libuv/libuv/issues/3217
    PR-URL: https://github.com/libuv/libuv/pull/3232
    Reviewed-By: Jameson Nash <vtjnash@gmail.com>

so this is okay, or it can wait for me to make a release this week upstream (which included that commit)

[vchuravy]

so this is okay, or it can wait for me to make a release this week upstream (which included that commit)

As long as we pick it up in your next bump :)

[shirodkara]

@vtjnash yes its the same backport, i guess its fine if it comes in the next weekly upstream that has the commit .

Thanks