In mirrors.bbclass we point into /pub but we don't in bitbake.conf.
All uses of KERNELORG_MIRROR look into /pub anyhow, so lets make
use of that.
(From OE-Core rev: 67a0c8f48b5ef2ae5fc712c9204e4e99818c8134)
Signed-off-by: Tom Rini <tom_rini@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>