net: cnss2: Add snapshot of CNSS2 driver

This is a snapshot of the CNSS2 driver and associated files as
of msm-4.4 commit a5a8c690cff5 ("cnss2: Make WLAN host driver
unregister work uninterruptible").

Change-Id: I197c69a134eae6745c34d3ec0511457e4f5fa0a5
Signed-off-by: Yue Ma <yuem@codeaurora.org>
18 files changed