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kernel: do nlocks && delayshed check only for Running state

If the process called sched to do a procswitch(),
skip the delaysched logic, we definitely do not
want to return here unless we'r in running state.

--- a/sys/src/9/port/proc.c

+++ b/sys/src/9/port/proc.c

@@ -180,8 +180,6 @@

 		/*

 		 * Delay the sched until the process gives up the locks

 		 * it is holding.  This avoids dumb lock loops.

-		 * Don't delay if the process is Moribund.

-		 * It called sched to die.

 		 * But do sched eventually.  This avoids a missing unlock

 		 * from hanging the entire kernel. 

 		 * But don't reschedule procs holding palloc or procalloc.

@@ -192,7 +190,7 @@

 		 * but Lock.p has not yet been initialized.

 		 */

 		if(up->nlocks)

-		if(up->state != Moribund)

+		if(up->state == Running)

 		if(up->delaysched < 20

 		|| palloc.Lock.p == up

 		|| fscache.Lock.p == up