The WICED Wi-Fi SDK version 3.X supports the BCM43341.
However, there is not support included for the Intel Edison platform within this WICED based SDK.
Please contact Intel directly to determine which tools they recommend for this non-WICED based platform.
Sorry i made a typo. The BCM43340 is used on the Edison platform
The answer is the same. Edison/Broadcom is outside the scope of WICED and this community.