[linux-yocto] preempt and meta support in linux-yocto-4.1

[Cristian Bercaru]

Hello!

Does linux-yocto-4.1 implement all the preempt-rt support in 
standard/preempt-rt branch?
or
Does it have a preempt-rt patch, like 3.4, 3.10 and 3.14?

How is the kernel configuration built in 4.1? I don't see any meta 
branch. Does it use configuration fragments, defconfigs, both or is it 
left at the BSP developers' choice?

Thank you,
Cristian Bercaru