Use setxattr for incremental-fs

BUG: b/133435829
Test: manual
Change-Id: I782f2041da5824fe28917789208e00d6ed10de79
diff --git a/private/fs_use b/private/fs_use
index 1964348..6fcc2cc 100644
--- a/private/fs_use
+++ b/private/fs_use
@@ -10,6 +10,7 @@
 fs_use_xattr squashfs u:object_r:labeledfs:s0;
 fs_use_xattr overlay u:object_r:labeledfs:s0;
 fs_use_xattr erofs u:object_r:labeledfs:s0;
+fs_use_xattr incremental-fs u:object_r:labeledfs:s0;
 
 # Label inodes from task label.
 fs_use_task pipefs u:object_r:pipefs:s0;