The buildstats handler causes an exception with: "'NoneType' object has no
attribute 'startswith'" early a build via hob, leaving a glaring red row
which means nothing to the user.
Mask this error until such a time as we have opportunity to correctly
diagnose and fix the root problem.
Workaround fix for [YOCTO #1433]
(Bitbake rev: b0cce5b52a20c0dad5ec0c4053f437cae89b6137)
Signed-off-by: Joshua Lock <josh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>