layer.conf: Add dangling appends override temporarily
layer.conf: Add dangling appends override temporarily

Signed-off-by: Scott Ware <236ca537f25019329d4c59ff2e5894dc25528a5c@gmail.com>

intel-iot-devkit/meta-iot-cloud,intel-iot-devkit/meta-iot-cloud,intel-iot-devkit/meta-iot-cloud