data-kernel: rmnet_perf: initial commit

snapshot version
rment perf is a DLKM which offloads
deaggregation responsibilities from rmnet
driver. Its initial purpose is to offer
optimizations to handling and feeding network
stack with IP/TCP packets.

Change-Id: I84148526ad4f2174bed0f884ecfb5a850e6cbf60
Signed-off-by: Conner Huff <chuff@codeaurora.org>