fixed compilation makefile for NFR52DK compile tests
@@ -30,7 +30,7 @@ hello-world/cc2538dk \
rpl-border-router/cc2538dk \
hello-world/nrf52dk \
platform-specific/nrf52dk/coap-demo/nrf52dk:coap-server \
-platform-specific/nrf52dk/coap-demo/nrf52dk:coap-client:SERVER_IPV6_ADDR=ffff \
+platform-specific/nrf52dk/coap-demo/nrf52dk:coap-client:SERVER_IPV6_EP=ffff \
platform-specific/nrf52dk/mqtt-demo/nrf52dk \
platform-specific/nrf52dk/blink-hello/nrf52dk \
platform-specific/nrf52dk/timer-test/nrf52dk \
