libjpeg-turbo: fix upstream version check (sort of)

We prepend '8d' to the version and at the moment there is no way
to strip that out when doing upstream checks. But at least the latest
upstream version is reported correctly.

(From OE-Core rev: 61c893aa2242896177ebceefb012a3d2499da3c7)

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/jpeg/libjpeg-turbo_8d+1.4.2.bb

@@ -14,6 +14,8 @@ BASEPV = "${@d.getVar('PV',True).split('+')[1]}"
 SRC_URI = "${SOURCEFORGE_MIRROR}/${BPN}/${BPN}-${BASEPV}.tar.gz"
 SRC_URI[md5sum] = "86b0d5f7507c2e6c21c00219162c3c44"
 SRC_URI[sha256sum] = "521bb5d3043e7ac063ce3026d9a59cc2ab2e9636c655a2515af5f4706122233e"
+UPSTREAM_CHECK_URI = "http://sourceforge.net/projects/libjpeg-turbo/files/"
+UPSTREAM_CHECK_REGEX = "/libjpeg-turbo/files/(?P<pver>(\d+[\.\-_]*)+)/"
 
 S = "${WORKDIR}/${BPN}-${BASEPV}"