[qca-nss-ecm] create review base for sfe front end

Copy nss front end as sfe front end. This commit is just used as
review base to see what changes were made in later commit. sfe front
end don't take effect in this  commit.

Change-Id: Ia8da2c655a3a2d5fc29c4193ecbe2184b251373c
Signed-off-by: Xiaoping Fan <xfan@codeaurora.org>
17 files changed