f2fs-tools: fix build with musl

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

utils/f2fs-tools/patches/010-include-byteswap-h.patch

@@ -0,0 +1,10 @@
+--- a/include/f2fs_fs.h
++++ b/include/f2fs_fs.h
+@@ -12,6 +12,7 @@
+ #include <inttypes.h>
+ #include <linux/types.h>
+ #include <sys/types.h>
++#include <byteswap.h>
+ 
+ #ifdef HAVE_CONFIG_H
+ #include <config.h>