[U-Boot] [ANN] U-Boot v2018.09-rc2 released

Hey all,

It is release day and despite Travis-CI being really bad about network connections over the weekend, it's back to normal today at least. So I'm putting out v2018.09-rc2 now. I plan on looking at Kconfig migrations and similar things that I can size-test. I think there's still a code removal patch or two I can apply as well at this point.

Things look on track for -rc3 on the 27th, -rc4 on September 3rd and then final release on September 10th. Thanks all!