meta-ked: Remove incompatible Marvell/NXP WiFi/BT drivers

The version of the drivers is outdated and not compatible with Linux 6.x. Even the latest available drivers from the chipset vendor (NXP) do not work with recent kernels.

There is no point in keeping these drivers here unless the vendor provides an update.

Also there is a problem with the licensing. Currently the wrong version of the driver is used here. We need to use the MGPL version that is compatible with the Kernel GPL if we ever add these drivers again.

As an alternative there are upstream drivers available that should work (mwifiex and btmrvl).