zephyr/prj_base.conf: Update for net_config subsys refactor.

net_config subsystem was split off from net_app, and as a result, settings
need renaming from CONFIG_NET_APP_* to CONFIG_NET_CONFIG_*.

Author: pfalcon

ports/zephyr/prj_base.conf

@@ -27,20 +27,20 @@ CONFIG_NET_TCP=y
 CONFIG_NET_SOCKETS=y
 CONFIG_TEST_RANDOM_GENERATOR=y
 
-CONFIG_NET_APP_SETTINGS=y
-CONFIG_NET_APP_INIT_TIMEOUT=3
-CONFIG_NET_APP_NEED_IPV6=y
-CONFIG_NET_APP_NEED_IPV4=y
+CONFIG_NET_CONFIG_SETTINGS=y
+CONFIG_NET_CONFIG_INIT_TIMEOUT=3
+CONFIG_NET_CONFIG_NEED_IPV6=y
+CONFIG_NET_CONFIG_NEED_IPV4=y
 
 # DNS
 CONFIG_DNS_RESOLVER=y
 CONFIG_DNS_RESOLVER_ADDITIONAL_QUERIES=2
 CONFIG_DNS_SERVER_IP_ADDRESSES=y
 
 # Static IP addresses
-CONFIG_NET_APP_MY_IPV6_ADDR="2001:db8::1"
-CONFIG_NET_APP_MY_IPV4_ADDR="192.0.2.1"
-CONFIG_NET_APP_MY_IPV4_GW="192.0.2.2"
+CONFIG_NET_CONFIG_MY_IPV6_ADDR="2001:db8::1"
+CONFIG_NET_CONFIG_MY_IPV4_ADDR="192.0.2.1"
+CONFIG_NET_CONFIG_MY_IPV4_GW="192.0.2.2"
 CONFIG_DNS_SERVER1="192.0.2.2"
 
 # DHCP configuration. Until DHCP address is assigned,