cnss2: Update board data file name format

If board ID is larger than 0xFF (e.g. 0xABCD), the proper BDF file
name format should be updated to bdwlanAB.bCD or bdwlanAB.eCD based
on corresponding BDF types.

Add snapshot of data file name format change from msm-4.14
commit 48129d773e327f7131116bb8bb8d7b91cc235e90.

Change-Id: Ib076d16d2faeb5ee1e9006e215a9ed4d279c35e9
Signed-off-by: Nirav Shah <nnshah@codeaurora.org>