TDF_* flags should be used with td_flags field and TDP_* flags should be used

with td_pflags field. Correct two places where it was not the case.

Discussed with:	kib
MFC after:	1 week

sys/arm/arm/machdep.c

@@ -137,7 +137,7 @@ sendsig(catcher, ksi, mask)
 	    catcher, sig);
 
 	/* Allocate and validate space for the signal handler context. */
-	if ((td->td_flags & TDP_ALTSTACK) != 0 && !(onstack) &&
+	if ((td->td_pflags & TDP_ALTSTACK) != 0 && !(onstack) &&
 	    SIGISMEMBER(psp->ps_sigonstack, sig)) {
 		fp = (struct sigframe *)(td->td_sigstk.ss_sp + 
 		    td->td_sigstk.ss_size);

sys/kern/init_main.c

@@ -467,7 +467,8 @@ proc0_init(void *dummy __unused)
 	td->td_priority = PVM;
 	td->td_base_pri = PVM;
 	td->td_oncpu = 0;
-	td->td_flags = TDF_INMEM|TDP_KTHREAD;
+	td->td_flags = TDF_INMEM;
+	td->td_pflags = TDP_KTHREAD;
 	td->td_cpuset = cpuset_thread0();
 	prison0.pr_cpuset = cpuset_ref(td->td_cpuset);
 	p->p_peers = 0;