storaged: replace cmd arguments with properties

Add properties to control event intervals.
Add a property to check time spent in event loop.

Bug: 34612341
Bug: 34198239
Change-Id: I01f64c84e17153377ece7ae530be106e3f55287e
diff --git a/storaged/README.properties b/storaged/README.properties
new file mode 100644
index 0000000..70e6026
--- /dev/null
+++ b/storaged/README.properties
@@ -0,0 +1,6 @@
+ro.storaged.event.interval    # interval storaged scans for IO stats, in seconds
+ro.storaged.event.perf_check  # check for time spent in event loop, in microseconds
+ro.storaged.disk_stats_pub    # interval storaged publish disk stats, in seconds
+ro.storaged.emmc_info_pub     # interval storaged publish emmc info, in seconds
+ro.storaged.uid_io.interval   # interval storaged checks Per UID IO usage, in seconds
+ro.storaged.uid_io.threshold  # Per UID IO usage limit, in bytes