midori: change use of BR2_JLEVEL to PARALLEL_JOBS

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/midori/midori.mk

@@ -34,7 +34,7 @@ define MIDORI_CONFIGURE_CMDS
 endef
 
 define MIDORI_BUILD_CMDS
-       (cd $(@D); ./waf build -j $(BR2_JLEVEL))
+       (cd $(@D); ./waf build -j $(PARALLEL_JOBS))
 endef
 
 define MIDORI_INSTALL_TARGET_CMDS