Redirect 'arm-none-eabi-gcc' for windows back to SparkFun hosting

Author: oclyke

IDE_Board_Manager/package_sparkfun_index.json

@@ -1055,10 +1055,10 @@
             }, 
             {
               "host": "i686-mingw32",
-              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/8-2018q4/gcc-arm-none-eabi-8-2018-q4-major-win32.zip?revision=ab9cb8f8-6a9d-4a6e-818a-295f5d1ca982?product=GNU%20Arm%20Embedded%20Toolchain,ZIP,,Windows,8-2018-q4-major", 
-              "checksum": "SHA-256:be5e2f68549efaecb79bdc34ff03c06f27deb2fcec3badddb5729cfb5ce43d6b", 
-              "archiveFileName": "win32_aneg-8-2018_2018-q4-major.zip", 
-              "size": "135765494"
+              "url": "https://static.sparkfun.com/large/gcc-arm-none-eabi-8-2018-q4-major-win32-modified.zip", 
+              "checksum": "SHA-256:98f47ed254ce31942408028c3a4a75ad4ee9fe7f318daecafb8c101bc19a6e23", 
+              "archiveFileName": "gcc-arm-none-eabi-8-2018-q4-major-win32-modified.zip", 
+              "size": "135448870"
             }
           ]
         },