modules: update Gluon packages

906f5ef tunneldigger: clean up version variables in Makefile
b969e70 tunneldigger: Update to newest upstream commit: (#178)

modules

@@ -10,7 +10,7 @@ PACKAGES_OPENWRT_COMMIT=82ef2fd773987a72678a32b862f50085c3f57d56
 
 PACKAGES_GLUON_REPO=https://github.com/freifunk-gluon/packages.git
 PACKAGES_GLUON_BRANCH=v2017.1.x
-PACKAGES_GLUON_COMMIT=2e5a247a9f6c5bfa77e90796015c5f14026f4850
+PACKAGES_GLUON_COMMIT=906f5ef13ec91dd7433bd1a6bd4ffbd15614bbb3
 
 PACKAGES_ROUTING_REPO=https://github.com/openwrt-routing/packages.git
 PACKAGES_ROUTING_COMMIT=e656a6e0e69dd45b7caa24775bc86b6eb5dcfe7f