net: cnss_genl: Add snapshot of cnss_genl driver

This is a snapshot of cnss_utils driver and associated files as of
msm-4.14 commit a88aefea65f4
("msm: Add CLD80211_ATTR_META_DATA vendor attribute").

Checkpatch issues are also fixed on top of this commit.

CRs-Fixed: 2375545
Change-Id: Ib9719a0286b5ff227c431732047ccad5a2427bb3
Signed-off-by: Yuanyuan Liu <yuanliu@codeaurora.org>