strongswan: simplify MUSL patch

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

net/strongswan/patches/0900-src-Patch-for-building-with-musl-on-openwrt-taken-ve.patch

@@ -5,98 +5,9 @@ Subject: [PATCH 900/904] src: Patch for building with musl on openwrt (taken
  verbatim from openwrt package sources)
 
 ---
- .../kernel_netlink/kernel_netlink_ipsec.c     |  1 +
- .../kernel_netlink/kernel_netlink_net.c       |  2 +
- .../kernel_netlink/kernel_netlink_shared.c    |  2 +
- src/libstrongswan/library.h                   |  1 +
- src/libstrongswan/musl.h                      | 38 +++++++++++++++++++
  .../plugins/bliss/bliss_huffman.c             |  2 +
- 6 files changed, 46 insertions(+)
- create mode 100644 src/libstrongswan/musl.h
+ 1 files changed, 2 insertions(+)
 
---- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_ipsec.c
-+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_ipsec.c
-@@ -41,6 +41,7 @@
-  */
- 
- #define _GNU_SOURCE
-+#include <musl.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <sys/ioctl.h>
---- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
-+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
-@@ -37,6 +37,8 @@
-  * THE SOFTWARE.
-  */
- 
-+#include "musl.h"
-+
- #include <sys/socket.h>
- #include <sys/utsname.h>
- #include <linux/netlink.h>
---- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_shared.c
-+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_shared.c
-@@ -37,6 +37,8 @@
-  * THE SOFTWARE.
-  */
- 
-+#include "musl.h"
-+
- #include <sys/socket.h>
- #include <linux/netlink.h>
- #include <linux/rtnetlink.h>
---- a/src/libstrongswan/library.h
-+++ b/src/libstrongswan/library.h
-@@ -121,6 +121,7 @@
- #include "utils/leak_detective.h"
- #include "plugins/plugin_loader.h"
- #include "settings/settings.h"
-+#include "musl.h"
- 
- typedef struct library_t library_t;
- 
---- /dev/null
-+++ b/src/libstrongswan/musl.h
-@@ -0,0 +1,38 @@
-+#include <sys/types.h>
-+
-+#define crypt x_crypt
-+#define encrypt x_encrypt
-+#include <unistd.h>
-+
-+#define fd_set x_fd_set
-+#define ino_t x_ino_t
-+#define off_t x_off_t
-+#define loff_t x_loff_t
-+#define dev_t x_dev_t
-+#define mode_t x_mode_t
-+#define uid_t x_uid_t
-+#define gid_t x_gid_t
-+#define uint64_t x_uint64_t
-+#define u_int64_t x_u_int64_t
-+#define int64_t x_int64_t
-+#define nlink_t x_nlink_t
-+#define timer_t x_timer_t
-+#define blkcnt_t x_blkcnt_t
-+
-+#include <linux/types.h>
-+
-+#undef fd_set
-+#undef ino_t
-+#undef off_t
-+#undef dev_t
-+#undef mode_t
-+#undef uid_t
-+#undef gid_t
-+#undef uint64_t
-+#undef u_int64_t
-+#undef int64_t
-+#undef nlink_t
-+#undef timer_t
-+#undef blkcnt_t
-+#undef crypt
-+#undef encrypt
 --- a/src/libstrongswan/plugins/bliss/bliss_huffman.c
 +++ b/src/libstrongswan/plugins/bliss/bliss_huffman.c
 @@ -18,6 +18,8 @@