SSB-14933 wifi-hal: Avoid including wifi-hal if the platform doesn't support scsc wifibt

Introduce guard to prevent including wifi-hal if the platform
doesn't support scsc wifibt.

Change-Id: If0abc68a26069f357ce33f5a79c562454f4b6dd0
SCSC-Bug-Id: SSB-14933
Signed-off-by: Lars Pedersen <lars.p@samsung.com>
1 file changed