Improve async/mt rendering & sync logic.

Should fix texture staging issues for now, without degrading performance
Fixes #49 (mvsc2, sf3, etc sprites)

core/hw/pvr/ta_ctx.h

@@ -146,11 +146,7 @@ struct TA_context
 
 	void MarkRend()
 	{
-<<<<<<< HEAD
 		rend.proc_start = tad.thd_root;
-=======
-		rend.proc_start = rend.proc_end;
->>>>>>> Stored TA command stream persists on TA_LIST_INIT, until first actual write.
 		rend.proc_end = tad.End();
 	}
 	void Alloc()