package/mender: add nodbus to tags if dbus is not selected

The README.md file suggests passing "nodbus" as a tag if dbus is not selected.

Signed-off-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/mender/mender.mk

@@ -93,6 +93,8 @@ define MENDER_INSTALL_DBUS_AUTHENTICATION_MANAGER_CONF
 		      $(TARGET_DIR)/etc/dbus-1/system.d/io.mender.AuthenticationManager.conf
 endef
 MENDER_POST_INSTALL_TARGET_HOOKS += MENDER_INSTALL_DBUS_AUTHENTICATION_MANAGER_CONF
+else
+MENDER_TAGS += nodbus
 endif
 
 define MENDER_INSTALL_INIT_SYSTEMD