The BB_CONSOLELOG variable is used to specify the console log file
to use. This means people can look up things that happened during a
build by may have scrolled off the screen.
[YOCTO #1771]
(Bitbake rev: a34ff490a46577a64345365fa1ac39c48d0861cd)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>