sanity.bbclass: Move sanity_info from conf to cache
Since this file is written during recipe parsing, having it in the
${BUILDDIR}/conf directory, which is covered by an inotify watcher,
will trigger a re-parse the next time bitbake is run and the resident
bitbake server is enabled. This causes the sanity_info file to be
updated again, which triggers a new parse the next time bitbake is run
ad infinitum. Moving it to ${BUILDDIR}/cache should avoid this.
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
