dumpstate: Add kernel wakeup sources info

Change-Id: I0f95afd6815c1403d8400a18ef3cd19d936d4601
diff --git a/cmds/dumpstate/dumpstate.c b/cmds/dumpstate/dumpstate.c
index 165f11c..0d92fc0 100644
--- a/cmds/dumpstate/dumpstate.c
+++ b/cmds/dumpstate/dumpstate.c
@@ -88,6 +88,7 @@
 
 
     dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
+    dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources");
     dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
 
     run_command("PROCESSES", 10, "ps", "-P", NULL);