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/public/slideshow.te b/microdroid/sepolicy/system/public/slideshow.te
new file mode 100644
index 0000000..10fbbb8
--- /dev/null
+++ b/microdroid/sepolicy/system/public/slideshow.te
@@ -0,0 +1,14 @@
+# slideshow seclabel is specified in init.rc since
+# it lives in the rootfs and has no unique file type.
+type slideshow, domain;
+
+allow slideshow kmsg_device:chr_file rw_file_perms;
+wakelock_use(slideshow)
+allow slideshow device:dir r_dir_perms;
+allow slideshow self:global_capability_class_set sys_tty_config;
+allow slideshow graphics_device:dir r_dir_perms;
+allow slideshow graphics_device:chr_file rw_file_perms;
+allow slideshow input_device:dir r_dir_perms;
+allow slideshow input_device:chr_file r_file_perms;
+allow slideshow tty_device:chr_file rw_file_perms;
+