add rules to set perms for input device sysfs attributes

Change-Id: I28ab7f1ac5cc07ade7830e87f5e70c96464bb686
diff --git a/rootdir/ueventd.rc b/rootdir/ueventd.rc
index 7845eb9..616566e 100644
--- a/rootdir/ueventd.rc
+++ b/rootdir/ueventd.rc
@@ -75,3 +75,8 @@
 /dev/ts0710mux*           0640   radio      radio
 /dev/ppp                  0660   radio      vpn
 /dev/tun                  0640   vpn        vpn
+
+# sysfs properties
+/sys/devices/virtual/input/input*   enable      0660  root   input
+/sys/devices/virtual/input/input*   poll_delay  0660  root   input
+