add arm libzstd 1.5.2

Author: supermerill

libzstd_arm/libzstd.a

@@ -0,0 +1,16 @@
+#   ZSTD - standard compression algorithm
+#   Copyright (C) 2014-2016, Yann Collet, Facebook
+#   BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+
+prefix=/usr/local/Cellar/zstd/1.5.2
+exec_prefix=${prefix}
+includedir=${prefix}/include
+libdir=${exec_prefix}/lib
+
+Name: zstd
+Description: fast lossless compression algorithm library
+URL: http://www.zstd.net/
+Version: 1.5.2
+Libs: -L${libdir} -lzstd
+Libs.private: 
+Cflags: -I${includedir}