libarchive: fix lz4 build

package/libarchive/patches/patch-libarchive_archive_write_add_filter_lz4_c

@@ -0,0 +1,14 @@
+--- libarchive-3.2.1.orig/libarchive/archive_write_add_filter_lz4.c	2016-03-19 19:16:07.000000000 +0100
++++ libarchive-3.2.1/libarchive/archive_write_add_filter_lz4.c	2016-09-24 03:02:39.587751961 +0200
+@@ -386,11 +386,7 @@ archive_filter_lz4_free(struct archive_w
+ #endif
+ 		else
+ #endif
+-#if LZ4_VERSION_MINOR >= 3
+ 			LZ4_freeStream(data->lz4_stream);
+-#else
+-			LZ4_free(data->lz4_stream);
+-#endif
+ 	}
+ 	free(data->out_buffer);
+ 	free(data->in_buffer_allocated);