ble_mesh: ci: Enable friend & low power in build check

examples/bluetooth/esp_ble_mesh/ble_mesh_node/onoff_server/sdkconfig.ci.bluedroid

@@ -10,4 +10,5 @@ CONFIG_BT_BTU_TASK_STACK_SIZE=4512
 
 CONFIG_BLE_MESH=y
 CONFIG_BLE_MESH_NODE=y
-CONFIG_BLE_MESH_PB_GATT=y
+CONFIG_BLE_MESH_PB_GATT=y
+CONFIG_BLE_MESH_FRIEND=y

examples/bluetooth/esp_ble_mesh/ble_mesh_node/onoff_server/sdkconfig.ci.nimble

@@ -10,3 +10,4 @@ CONFIG_BT_NIMBLE_ENABLED=y
 CONFIG_BLE_MESH=y
 CONFIG_BLE_MESH_NODE=y
 CONFIG_BLE_MESH_PB_GATT=y
+CONFIG_BLE_MESH_LOW_POWER=y