lib: net: softap_wifi_provision: Align with SFM API changes

From the upstream migration guide:

The SMF_CREATE_STATE macro now always takes 5 arguments. The amount
of arguments is now independent of the values of
CONFIG_SMF_ANCESTOR_SUPPORT and CONFIG_SMF_INITIAL_TRANSITION.
If the additional arguments are not used, they have to be set to NULL

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>

Author: rlubos

subsys/net/lib/softap_wifi_provision/softap_wifi_provision.c

@@ -798,22 +798,24 @@ static void reset_entry(void *o)
 static const struct smf_state state[] = {
 	[STATE_INIT]	      = SMF_CREATE_STATE(init_entry,
 						 init_run,
-						 NULL),
+						 NULL, NULl, NULl),
 	[STATE_UNPROVISIONED] = SMF_CREATE_STATE(unprovisioned_entry,
 						 unprovisioned_run,
-						 unprovisioned_exit),
+						 unprovisioned_exit,
+						 NULl, NULl),
 	[STATE_PROVISIONING]  = SMF_CREATE_STATE(provisioning_entry,
 						 provisioning_run,
-						 provisioning_exit),
+						 provisioning_exit,
+						 NULl, NULl),
 	[STATE_PROVISIONED]   = SMF_CREATE_STATE(NULL,
 						 provisioned_run,
-						 provisioned_exit),
+						 provisioned_exit,
+						 NULl, NULl),
 	[STATE_FINISHED]      = SMF_CREATE_STATE(finished_entry,
 						 finished_run,
-						 NULL),
+						 NULL, NULl, NULl),
 	[STATE_RESET]	      = SMF_CREATE_STATE(reset_entry,
-						 NULL,
-						 NULL),
+						 NULL, NULL, NULl, NULl),
 };
 
 static int send_response(struct http_req *request, char *response, size_t len, int socket)