net: cnss_prealloc: Add snapshot of cnss_prealloc driver

This is a snapshot of the CNSS2 driver and associated files as of
msm-4.14 commit fbe4101b0189
("cnss_prealloc: Update prealloc memory table").

Checkpatch issues are also fixed on top of this commit.

CRs-Fixed: 2375545
Change-Id: Ie57101548bb016c92405fbf34f0e7bbcd938bc4a
Signed-off-by: Yuanyuan Liu <yuanliu@codeaurora.org>