poky: Add Ubuntu-13.10 to supported distros list

(From meta-yocto rev: bbde6b42ff2556d090410b49c083609956789eda)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta-yocto/conf/distro/poky.conf

@@ -77,6 +77,7 @@ SANITY_TESTED_DISTROS ?= " \
             Ubuntu-12.04 \n \
             Ubuntu-12.10 \n \
             Ubuntu-13.04 \n \
+            Ubuntu-13.10 \n \
             Fedora-18 \n \
             Fedora-19 \n \
             CentOS-6.4 \n \