[meta-freescale] imx8mmevk : Cannot build image with warrior release

[Carlos Rafael Giani]

When I try to build an image, the rootfs generation fails, because both 
firmware-qca9377 and firmware-qca6174 want to install 
/etc/bluetooth/firmware.conf .

This happens with both core-image-base and core-image-weston.

The hack to circumvent this is to remove qca9377 or qca6174 from the 
imx8mmevk.conf MACHINE_FEATURES.

Is this a known issue?