[yocto] Using a layer's kernel instead of a machine's stated preferred virtual/kernel provider

[Darren Hart]

I've created a new layer which provides a linux kernel. This layer 
applies to boards (ie beagleboard) that are defined in 
meta/conf/machines which specify linux-wrs as their preferred kernel.

Is there a standard way of overriding this when building images / 
packages from a new layer? Something like a machine.append file maybe? I 
could just copy the machine config and rename it something else - 
beagleboard-mylayer and set MACHINE=beagleboard-mylayer, but that seems 
like a hack.

Thanks,

-- 
Darren Hart
Yocto Linux Kernel