net: rmnet_data: Update snapshot of driver

This is a snapshot of the rmnet_data driver taken as of msm-4.9
commit 2698fe946b6f9e ("net: rmnet_data: Remove invalid error
message").

CRs-Fixed: 2156182
Change-Id: Ibab410518ca6981a868980082acfe739ad49b298
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>