[Android] Use more specific host platforms for devil.

build/android/devil/devil_dependencies.json

 {
   "config_type": "BaseConfig",
   "dependencies": {
     "aapt": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
-        "android_host": {
+        "android_linux2": {
           "cloud_storage_hash": "7448de3cb5e834afdedeaad8b40ba63ac53f3dc4",
           "download_path": "../bin/aapt"
         }
       }
     },
     "adb": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
-        "android_host": {
+        "android_linux2": {
           "cloud_storage_hash": "0c2043552619c8ec8bb5d986ba75703a598611fc",
           "download_path": "../bin/adb"
         }
       }
     },
     "android_build_tools_libc++": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
-        "android_host": {
+        "android_linux2": {
           "cloud_storage_hash": "52d150a7ccde835f38b4337392152f3013d5f303",
           "download_path": "../bin/lib/libc++.so"
         }
       }
     },
     "dexdump": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
-        "android_host": {
+        "android_linux2": {
           "cloud_storage_hash": "38765b5b358c29003e56b1d214606ea13467b6fe",
           "download_path": "../bin/dexdump"
         }
       }
     },
     "forwarder_device": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
         "android_armeabi-v7a": {
           "cloud_storage_hash": "4858c9e41da72ad8ff24414731feae2137229361",
           "download_path": "../bin/armeabi-v7a/forwarder_device"
         },
         "android_arm64-v8a": {
           "cloud_storage_hash": "8cbd1ac2079ee82ce5f1cf4d3e85fc1e53a8f018",
           "download_path": "../bin/arm64-v8a/forwarder_device"
         }
       }
     },
     "forwarder_host": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
-        "android_host": {
+        "android_linux2": {
           "cloud_storage_hash": "b3dda9fbdd4a3fb933b64111c11070aa809c7ed4",
           "download_path": "../bin/forwarder_host"
         }
       }
     },
     "md5sum_device": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
         "android_armeabi-v7a": {
           "cloud_storage_hash": "c8894480be71d5e49118483d83ba7a6e0097cba6",
           "download_path": "../bin/armeabi-v7a/md5sum_device"
         },
         "android_arm64-v8a": {
           "cloud_storage_hash": "bbe410e2ffb48367ac4ca0874598d4f85fd16d9d",
           "download_path": "../bin/arm64-v8a/md5sum_device"
         }
       }
     },
     "md5sum_host": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
-        "android_host": {
+        "android_linux2": {
           "cloud_storage_hash": "49e36c9c4246cfebef26cbd07436c1a8343254aa",
           "download_path": "../bin/md5sum_host"
         }
       }
     },
     "pymock": {
       "file_info": {
-        "android_host": {
+        "android_darwin": {
           "local_paths": [
             "../../../tools/telemetry/third_party/mock"
           ]
+        },
+        "android_linux2": {
+          "local_paths": [
+            "../../../tools/telemetry/third_party/mock"
+          ]
+        },
+        "android_win32": {
+          "local_paths": [
+            "../../../tools/telemetry/third_party/mock"
+          ]
         }
       }
     },
     "split-select": {
       "cloud_storage_bucket": "chromium-telemetry",
       "cloud_storage_base_folder": "binary_dependencies",
       "file_info": {
-        "android_host": {
+        "android_linux2": {
           "cloud_storage_hash": "3327881fa3951a503b9467425ea8e781cdffeb9f",
           "download_path": "../bin/split-select"
         }
       }
     }
   }
 }