The count of warnings being shown in the summary at the end was also
including the number of errors.
(Bitbake rev: d242d6ca81dd83b2b13a3ac77ac4cd829a69cf83)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>