Switch to more conventional ps arguments in dumpstate.

I'll come back and remove the "toybox" once I've switched the symlink
from toolbox to toybox...

Change-Id: I00f848ab4dade8650726b054429a2926d3d72018
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index f10995d..6b8ca57 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -429,7 +429,8 @@
     dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
     dump_file("KERNEL SYNC", "/d/sync");
 
-    run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL);
+    run_command("PROCESSES AND THREADS", 10, "toybox", "ps", "-A", "-T", "-Z",
+                "-O", "pri,nice,rtprio,sched,pcy", NULL);
     run_command("LIBRANK", 10, "librank", NULL);
 
     do_dmesg();