ppc: fix mq_send
ppc: fix mq_send

Add a similar fix as in 8dd85e041bdccf630c90e12ea044f55d28da9396.

Reported-By: Steven Seeger <939162d21c738ed350bd57cb678dda07b08540b4@frontier.com>

kraj/uclibc-ng,brgl/uclibc-ng,brgl/uclibc-ng,kraj/uclibc-ng,wbx-github/uclibc-ng,wbx-github/uclibc-ng,kraj/uclibc-ng,wbx-github/uclibc-ng,brgl/uclibc-ng,wbx-github/uclibc-ng,brgl/uclibc-ng,kraj/uclibc-ng