OpenVPN: Update to 2.4.1

Update OpenVPN to 2.4.1
Remove 200-small_build_enable_occ.patch as it's included upstream.
Refresh patches
Add mirror and switch to HTTPS

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

package/network/services/openvpn/Makefile

@@ -9,12 +9,14 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=openvpn
 
-PKG_VERSION:=2.4.0
+PKG_VERSION:=2.4.1
-PKG_RELEASE:=4
+PKG_RELEASE:=1
 
-PKG_SOURCE_URL:=http://swupdate.openvpn.net/community/releases
+PKG_SOURCE_URL:=\
+	https://build.openvpn.net/downloads/releases/ \
+	https://swupdate.openvpn.net/community/releases/
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_HASH:=6f23ba49a1dbeb658f49c7ae17d9ea979de6d92c7357de3d55cd4525e1b2f87e
+PKG_HASH:=fde9e22c6df7a335d2d58c6a4d5967be76df173c766a5c51ece57fd044c76ee5
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
 

package/network/services/openvpn/patches/100-mbedtls-disable-runtime-version-check.patch

@@ -1,6 +1,6 @@
 --- a/src/openvpn/ssl_mbedtls.c
 +++ b/src/openvpn/ssl_mbedtls.c
-@@ -1333,7 +1333,7 @@ const char *
+@@ -1337,7 +1337,7 @@ const char *
  get_ssl_library_version(void)
  {
      static char mbedtls_version[30];

package/network/services/openvpn/patches/200-small_build_enable_occ.patch

@@ -1,12 +0,0 @@
---- a/src/openvpn/syshead.h
-+++ b/src/openvpn/syshead.h
-@@ -589,9 +589,7 @@ socket_defined (const socket_descriptor_
- /*
-  * Should we include OCC (options consistency check) code?
-  */
--#ifndef ENABLE_SMALL
- #define ENABLE_OCC
--#endif
- 
- /*
-  * Should we include NTLM proxy functionality

package/network/services/openvpn/patches/210-build_always_use_internal_lz4.patch

@@ -1,6 +1,6 @@
 --- a/configure.ac
 +++ b/configure.ac
-@@ -1014,37 +1014,14 @@ dnl
+@@ -1058,37 +1058,14 @@ dnl
  AC_ARG_VAR([LZ4_CFLAGS], [C compiler flags for lz4])
  AC_ARG_VAR([LZ4_LIBS], [linker flags for lz4])
  if test "$enable_lz4" = "yes" && test "$enable_comp_stub" = "no"; then
@@ -39,3 +39,5 @@
      AC_DEFINE(ENABLE_LZ4, 1, [Enable LZ4 compression library])
 -    CFLAGS="${saved_CFLAGS}"
  fi
+ 
+