Add microdroid specific sepolicy

Microdroid will have a separate sepolicy, apart from the core policy.
This is the first step; For now it's a simple copy of system/sepolicy.
For the future work, it will be stripped.

Bug: 189165759
Test: boot microdroid and see selinux enforced
Change-Id: I2fee39f7231560b49c93bd5e8d0feeffada40938
diff --git a/microdroid/sepolicy/system/private/file.te b/microdroid/sepolicy/system/private/file.te
new file mode 100644
index 0000000..0f7e689
--- /dev/null
+++ b/microdroid/sepolicy/system/private/file.te
@@ -0,0 +1,67 @@
+# /proc/config.gz
+type config_gz, fs_type, proc_type;
+
+# /data/misc/storaged
+type storaged_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/wmtrace for wm traces
+type wm_trace_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/a11ytrace for accessibility traces
+type accessibility_trace_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/perfetto-traces for perfetto traces
+type perfetto_traces_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/perfetto-traces/bugreport for perfetto traces for bugreports.
+type perfetto_traces_bugreport_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/perfetto-configs for perfetto configs
+type perfetto_configs_data_file, file_type, data_file_type, core_data_file_type;
+
+# /sys/kernel/debug/kcov for coverage guided kernel fuzzing in userdebug builds.
+type debugfs_kcov, fs_type, debugfs_type;
+
+# App executable files in /data/data directories
+type app_exec_data_file, file_type, data_file_type, core_data_file_type;
+typealias app_exec_data_file alias rs_data_file;
+
+# /data/misc_[ce|de]/rollback : Used by installd to store snapshots
+# of application data.
+type rollback_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/gsi/ota
+type ota_image_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/gsi_persistent_data
+type gsi_persistent_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/emergencynumberdb
+type emergency_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/profcollectd
+type profcollectd_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/apexdata/com.android.art
+type apex_art_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/apexdata/com.android.art/staging
+type apex_art_staging_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/font/files
+type font_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/odrefresh
+type odrefresh_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/odsign
+type odsign_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/misc/virtualizationservice
+type virtualizationservice_data_file, file_type, data_file_type, core_data_file_type;
+
+# /data/system/environ
+type environ_system_data_file, file_type, data_file_type, core_data_file_type;
+
+# /dev/kvm
+type kvm_device, dev_type;