Add compat changes for e2fs addition.

Commit 5f573ab2 added policy for
the additions of upstream fs tools.  Make sure the new types are
denoted as such (no object relabeling needs to be done) and that
objects which are relabeled are.

Bug: 35219933
Bug: 62573845
Test: None. Prebuilt change only.
Change-Id: I6515e05ebc60ca08e98029f471cf2861826036fc

prebuilts/api/26.0/26.0.ignore.cil

@@ -2,4 +2,8 @@
 ;;   analogue in older policy.  Thus, we do not need to map these types to
 ;;   previous ones.  Add here to pass checkapi tests.
 (typeattribute new_objects)
-(typeattributeset new_objects (kmsg_debug_device))
+(typeattributeset new_objects
+  ( e2fs
+    e2fs_exec
+    kmsg_debug_device
+    sysfs_fs_ext4_features))