fs_use: Enabled loading security xattrs for squashfs

Change-Id: Icfa4b2cac6a960ef47e928308e4c6c9bd797d180
Signed-off-by: Mohamad Ayyash <mkayyash@google.com>

fs_use

@@ -7,6 +7,7 @@ fs_use_xattr ext4 u:object_r:labeledfs:s0;
 fs_use_xattr xfs u:object_r:labeledfs:s0;
 fs_use_xattr btrfs u:object_r:labeledfs:s0;
 fs_use_xattr f2fs u:object_r:labeledfs:s0;
+fs_use_xattr squashfs u:object_r:labeledfs:s0;
 
 # Label inodes from task label.
 fs_use_task pipefs u:object_r:pipefs:s0;