Move slider-sepolicy into gs101-sepolicy

from: 71e609c24c97fc8d44843af30527cbeb90d5dcdf

Bug: 167996145
Change-Id: Ie00e7e0983a3ca695bbd5140c929d07a80144301
diff --git a/display/common/file.te b/display/common/file.te
new file mode 100644
index 0000000..3734e33
--- /dev/null
+++ b/display/common/file.te
@@ -0,0 +1 @@
+type persist_display_file, file_type, vendor_persist_type;