rootdir: Make trusty version readable by dumpstate

Change-Id: I761650d286b454f1fe01a585e7cd6ec769bfc527
diff --git a/rootdir/ueventd.rc b/rootdir/ueventd.rc
index eff24c3..474f630 100644
--- a/rootdir/ueventd.rc
+++ b/rootdir/ueventd.rc
@@ -88,6 +88,7 @@
 /dev/ppp                  0660   radio      vpn
 
 # sysfs properties
+/sys/devices/platform/trusty.*      trusty_version        0440  root   log
 /sys/devices/virtual/input/input*   enable      0660  root   input
 /sys/devices/virtual/input/input*   poll_delay  0660  root   input
 /sys/devices/virtual/usb_composite/*   enable      0664  root   system