sanity.bbclass: support wildcards in SANITY_TESTED_DISTROS
With this change, you can use shell like globbing expressions (as
supported by Python's fnmatch) for entries in SANITY_TESTED_DISTROS.
This makes it possible to say that, e.g. "all Debian 7 Wheezy releases
are supported" with the entry "Debian-7.*".
[YOCTO #5265]
Signed-off-by: Olof Johansson <olof.johansson@axis.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
