allow aconfigd to mmap test storage files

Bug: b/312459182
Test: atest aconfigd_test
Change-Id: Ia4ee6606e3e8721e4ed22c63ac7046f9511be2b9
diff --git a/private/aconfigd.te b/private/aconfigd.te
index 0e2a7ae..2f7f1d5 100644
--- a/private/aconfigd.te
+++ b/private/aconfigd.te
@@ -28,7 +28,7 @@
 # allow aconfigd to access shell_data_file for atest
 userdebug_or_eng(`
     allow aconfigd shell_data_file:dir search;
-    allow aconfigd shell_data_file:file { getattr read open };
+    allow aconfigd shell_data_file:file { getattr read open map };
 ')
 
 # allow aconfigd to log to the kernel.