cve-check.bbclass: detect patched CVE's also from patch file names
While poky master branch has been fixed so that all CVE patch files have
the:
CVE: CVE-2017-
1234556
strings in the patch comments, many older versions of poky and other meta
layers are not, but the CVE patches quite often have the CVE id in the
patch file name.
If the CVE: string also found, there are no duplicates in the report.
Signed-off-by: Mikko Rapeli <mikko.rapeli@bmw.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
