modem_diagnostics: add rules for getting battery info am: 25bf6fd541

Original change: https://android-review.googlesource.com/c/device/google/bonito-sepolicy/+/1880670

Change-Id: I722ee5e10c36e5b1517214602e91e849823dcb71
diff --git a/vendor/google/modem_diagnostics.te b/vendor/google/modem_diagnostics.te
index d506496..1805ac1 100644
--- a/vendor/google/modem_diagnostics.te
+++ b/vendor/google/modem_diagnostics.te
@@ -20,4 +20,7 @@
 
   set_prop(modem_diagnostic_app, vendor_modem_diag_prop)
   set_prop(modem_diagnostic_app, radio_control_prop)
+
+  allow modem_diagnostic_app sysfs_batteryinfo:file r_file_perms;
+  allow modem_diagnostic_app sysfs_batteryinfo:dir search;
 ')