Split off ART rules for new ART APEX.

Test: Build & boot
Bug: 135753770
Exempt-From-Owner-Approval: Approved internally
Change-Id: Iab56f6b5bb7a59fbeaad214a64fbd959060574f4
Merged-In: Iab56f6b5bb7a59fbeaad214a64fbd959060574f4
diff --git a/apex/com.android.runtime-file_contexts b/apex/com.android.runtime-file_contexts
new file mode 100644
index 0000000..7878b20
--- /dev/null
+++ b/apex/com.android.runtime-file_contexts
@@ -0,0 +1,6 @@
+#############################
+# System files
+#
+(/.*)?                   u:object_r:system_file:s0
+/bin/linker(64)?         u:object_r:system_linker_exec:s0
+/lib(64)?(/.*)?          u:object_r:system_lib_file:s0