.gitignore: add /bitbake to the ignore list for external distributions
External distributions based on the oe-core will typically include
bitbake in the top level directory. The idea is to make it easy
for external distributions to easily assemble a distribution
with a pristine version of oe-core, add avoid the git untracked messages:
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
#
# bitbake/
[RP: remove leading slash] Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
