net: fix to handle warning message

This change will unregister the queue handler before registering for SIP
nf queue handler.

Added the required changes for 4.14 kernel.

Change-Id: Ifd2316d428970d28c6d988e6e54ec67d1760b011
Signed-off-by: Sivasri Kumar Vanka <sivasri@codeaurora.org>