wifidog: fix compilation with more recent wolfssl

Needs an extra header. pthread.h is also no longer implicitly included.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
(cherry picked from commit 4605f98b41)

net/wifidog/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=wifidog
 PKG_VERSION:=1.3.0
-PKG_RELEASE:=7
+PKG_RELEASE:=8
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/wifidog/wifidog-gateway

net/wifidog/patches/030-wolfssl-options.patch

@@ -0,0 +1,18 @@
+--- a/src/simple_http.c
++++ b/src/simple_http.c
+@@ -28,6 +28,7 @@
+ #include <arpa/inet.h>
+ #include <errno.h>
+ #include <unistd.h>
++#include <pthread.h>
+ #include <string.h>
+ #include <syslog.h>
+ 
+@@ -37,6 +38,7 @@
+ #include "pstring.h"
+ 
+ #ifdef USE_CYASSL
++#include <cyassl/options.h>
+ #include <cyassl/ssl.h>
+ #include "conf.h"
+ /* For CYASSL_MAX_ERROR_SZ */