samples: net: sockets: coap_server: Add 802154 subg support

- Tested with BeagleConnect Freedom.
- Also enable build in CI similar to echo_server/client

Signed-off-by: Ayush Singh <[email protected]>

Author: Ayush1325

samples/net/sockets/coap_server/overlay-802154-subg.conf

@@ -0,0 +1,18 @@
+CONFIG_BT=n
+
+# Disable IPv4
+CONFIG_NET_IPV4=n
+
+CONFIG_NET_CONFIG_NEED_IPV6=y
+CONFIG_NET_CONFIG_NEED_IPV4=n
+CONFIG_NET_CONFIG_MY_IPV4_ADDR=""
+CONFIG_NET_CONFIG_PEER_IPV4_ADDR=""
+
+CONFIG_NET_L2_IEEE802154=y
+CONFIG_NET_L2_IEEE802154_SHELL=y
+CONFIG_NET_L2_IEEE802154_LOG_LEVEL_INF=y
+
+# Uncomment for 868 MHz
+#CONFIG_NET_CONFIG_IEEE802154_CHANNEL=0
+# Uncomment for 906 MHz:
+CONFIG_NET_CONFIG_IEEE802154_CHANNEL=1

samples/net/sockets/coap_server/sample.yaml

@@ -28,3 +28,6 @@ tests:
       - CONFIG_BUILD_ONLY_NO_BLOBS=y
     platform_allow:
       - nrf7002dk/nrf5340/cpuapp
+  sample.net.sockets.coap_server.802154.subg:
+    extra_args: EXTRA_CONF_FILE="overlay-802154-subg.conf"
+    platform_allow: beagleconnect_freedom