gnu-config: Only apply path transformations in the non-native/non-nativesdk case

The BUILD_ARCH != TARGET_ARCH check isn't a safe one to detect native builds
and doesn't cover the nativesdk case. This converts the recipe to use PN
instead which is more accurate and ensures the correct entries making it
into the correct packages.

(From OE-Core rev: 4a601314604e8428d9dace95c32a71a57eacaaf5)

(From OE-Core rev: 4066c7a3940df2740ad40b21e3ad517a9af20690)

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

meta/recipes-devtools/gnu-config/gnu-config_20080123.bb

@@ -28,7 +28,7 @@ do_install () {
 		sed -e 's,@gnu-configdir@,${datadir}/gnu-config,g' \
 		    -e 's,@autom4te_perllibdir@,${datadir}/autoconf,g' > ${D}${bindir}/gnu-configize
 	# In the native case we want the system perl as perl-native can't have built yet
-	if [ "${BUILD_ARCH}" != "${TARGET_ARCH}" ]; then
+	if [ "${PN}" != "gnu-config-native" -a "${PN}" != "gnu-config-nativesdk" ]; then
 		sed -i -e 's,/usr/bin/env,${bindir}/env,g' ${D}${bindir}/gnu-configize
 	fi
 	chmod 755 ${D}${bindir}/gnu-configize