xfrpc: do not link wolfSSL

Upstream enables wolfSSL whenever it finds it in the sysroot, leaving
libwolfssl.so undeclared and packaging broken on all 35 targets. OpenSSL
is already pulled in via libevent2-openssl and upstream supports it, so
build against that alone.

Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>

net/xfrpc/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=xfrpc
 PKG_VERSION:=5.09.982
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/liudf0716/xfrpc/tar.gz/$(PKG_VERSION)?
@@ -22,6 +22,8 @@ PKG_LICENSE_FILES:=COPYING
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk
 
+CMAKE_OPTIONS += -DUSE_WOLFSSL=OFF
+
 define Package/xfrpc
   SUBMENU:=Web Servers/Proxies
   SECTION:=net