Allow ssr tracker to access ssr properties

Allow ssr tracker to access ssr properties

Test: Verified that subsystem restart tracker
is able to access and add correct information
to dropbox

BUG=29750774

Change-Id: Idb338cb701d16c1fd854865e9c7ed84d450bce1d
diff --git a/sepolicy/system_app.te b/sepolicy/system_app.te
index dc52da4..4b032f6 100644
--- a/sepolicy/system_app.te
+++ b/sepolicy/system_app.te
@@ -7,4 +7,5 @@
   allow system_app ramdump_data_file:dir r_dir_perms;
   allow system_app ramdump_data_file:file r_file_perms;
   r_dir_file(system_app, sysfs_msm_subsys)
+  get_prop(system_app, ssr_prop)
 ')