8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state. Reviewed-by: dholmes, kvn
8032634: Add #ifdef PPC64 around OrderAccess operations on _thread_state.
Reviewed-by: dholmes, kvn

wdv4758h/ZipPy,wdv4758h/ZipPy,wdv4758h/ZipPy,wdv4758h/ZipPy,wdv4758h/ZipPy,wdv4758h/ZipPy,wdv4758h/ZipPy,wdv4758h/ZipPy