Allow incidentd to read kernel version

Bug: 110230810
Test: N/A
Change-Id: Ide135dd5a8da05f0ea639bf03ce9612862108225

private/incidentd.te

@@ -19,6 +19,9 @@ allow incidentd incident_helper:process sigkill;
 allow incidentd system_file:file execute_no_trans;
 allow incidentd toolbox_exec:file rx_file_perms;
 
+# section id 1002, allow reading kernel version /proc/version
+allow incidentd proc_version:file r_file_perms;
+
 # section id 2001, allow reading /proc/pagetypeinfo
 allow incidentd proc_pagetypeinfo:file r_file_perms;