ensure host libjson-c is built prior to ucode
Signed-off-by: Chad Monroe <chad@monroe.io>
(cherry picked from commit 5a3f6c50ef29c8b11fe6967e65277b8331be0ff0)
Link: https://github.com/openwrt/openwrt/pull/15899
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>