package/libwebsockets: add wolfssl optional dependency

wolfssl is an optional dependency since version 1.5.1 and
https://github.com/warmcat/libwebsockets/commit/c3bcb89d01da0c3ce9915cd73451399ec005b535

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/libwebsockets/libwebsockets.mk

@@ -34,16 +34,25 @@ ifeq ($(BR2_PACKAGE_OPENSSL),y)
 LIBWEBSOCKETS_DEPENDENCIES += openssl host-openssl
 LIBWEBSOCKETS_CONF_OPTS += \
 	-DLWS_WITH_SSL=ON \
-	-DLWS_WITH_MBEDTLS=OFF
+	-DLWS_WITH_MBEDTLS=OFF \
+	-DLWS_WITH_WOLFSSL=OFF
 else ifeq ($(BR2_PACKAGE_MBEDTLS),y)
 LIBWEBSOCKETS_DEPENDENCIES += mbedtls
 LIBWEBSOCKETS_CONF_OPTS += \
 	-DLWS_WITH_SSL=ON \
-	-DLWS_WITH_MBEDTLS=ON
+	-DLWS_WITH_MBEDTLS=ON \
+	-DLWS_WITH_WOLFSSL=OFF
+else ifeq ($(BR2_PACKAGE_WOLFSSL),y)
+LIBWEBSOCKETS_DEPENDENCIES += host-pkgconf wolfssl
+LIBWEBSOCKETS_CONF_OPTS += \
+	-DLWS_WITH_SSL=ON \
+	-DLWS_WITH_MBEDTLS=OFF \
+	-DLWS_WITH_WOLFSSL=ON
 else
 LIBWEBSOCKETS_CONF_OPTS += \
 	-DLWS_WITH_SSL=OFF \
-	-DLWS_WITH_MBEDTLS=OFF
+	-DLWS_WITH_MBEDTLS=OFF \
+	-DLWS_WITH_WOLFSSL=OFF
 endif
 
 ifeq ($(BR2_PACKAGE_LIBEV),y)