osthread.d is trying to use PPC_THREAD_STATE32 which is not defined
in thread_act.d (PPC_THREAD_STATE is defined for the 32b case). This
leads to a build fail for libdruntime.
libphobos/ChangeLog:
* libdruntime/core/thread/osthread.d: Use PPC_THREAD_STATE
instead of PPC_THREAD_STATE32.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>