Fixed package_index template

Author: cmaglie

extras/package_index.json.template

@@ -17,14 +17,14 @@
               "size": "%%LINUX64_SIZE%%"
             },
             {
-              "host": "x86_64-mingw32",
+              "host": "i686-mingw32",
               "url": "http://downloads.arduino.cc/tools/%%FILENAME%%_%%VERSION%%_Windows_32bit.zip",
               "archiveFileName": "%%FILENAME%%_%%VERSION%%_Windows_32bit.zip",
               "checksum": "SHA-256:%%WINDOWS64_SHA%%",
               "size": "%%WINDOWS64_SIZE%%"
             },
             {
-              "host": "i686-mingw32",
+              "host": "x86_64-mingw32",
               "url": "http://downloads.arduino.cc/tools/%%FILENAME%%_%%VERSION%%_Windows_64bit.zip",
               "archiveFileName": "%%FILENAME%%_%%VERSION%%_Windows_64bit.zip",
               "checksum": "SHA-256:%%WINDOWS32_SHA%%",