Build and boot for all these machines and also explicitly set the
preferred kernel version for the x86 machines so that we can override
the default setting in oe-core.
(From meta-yocto rev: a93344439e01e8aba4ba15d3123ce31b4500add1)
Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
