Initialize sensor hal data storage directory at start

Test: system boots with no "Discarded xxx bytes of inotify data"
Bug: 37480448
Change-Id: Ie69af9829f57480da8674fff0c1f15a8b8863eb9
diff --git a/init.angler.nanohub.rc b/init.angler.nanohub.rc
index 5bbbb81..b0f18f2 100644
--- a/init.angler.nanohub.rc
+++ b/init.angler.nanohub.rc
@@ -5,6 +5,11 @@
     ## Update Nanohub FW if needed
     start flash-nanohub-fw
 
+on post-fs-data
+    mkdir /data/vendor/sensor
+    chown root system /data/vendor/sensor
+    chmod 0770 /data/vendor/sensor
+
 service flash-nanohub-fw /vendor/bin/nanoapp_cmd download
     oneshot
     disabled