There is no u-boot-fslc-tools recipe and thus the PREFERRED_PROVIDER is
not available for u-boot-tools.
Prevents:
| NOTE: Multiple providers are available for u-boot-mkimage-native (u-boot-imx-tools-native, u-boot-tools-native)
| Consider defining a PREFERRED_PROVIDER entry to match u-boot-mkimage-native
| NOTE: Multiple providers are available for runtime nativesdk-u-boot-mkimage (nativesdk-u-boot-imx-tools, nativesdk-u-boot-tools)
| Consider defining a PREFERRED_RPROVIDER entry to match nativesdk-u-boot-mkimage
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>