Bugfix: opencl: Dynamic mode should disable threads for this device, not just N after the first

Conflicts:
	driver-opencl.c

driver-opencl.c

@@ -814,8 +814,9 @@ void pause_dynamic_threads(int gpu)
 	int i;
 
 	for (i = 1; i < cgpu->threads; i++) {
-		struct thr_info *thr = &thr_info[i];
+		struct thr_info *thr;
 
+		thr = cgpu->thr[i];
 		if (!thr->pause && cgpu->dynamic) {
 			applog(LOG_WARNING, "Disabling extra threads due to dynamic mode.");
 			applog(LOG_WARNING, "Tune dynamic intensity with --gpu-dyninterval");