msm: rmnet: Add support for tethered USB channel

Some systems need to filter USB tethered data through userspace which
requires the USB tethered channel to be exported through RMNET.

Add support for tethered USB channel.

CRs-Fixed: 511027
Change-Id: I1da35a1f7196d3acf0d6448c5b5b8f80065a1413
Signed-off-by: Eric Holmberg <eholmber@codeaurora.org>
1 file changed