Make battor_wrapper use target_platform instead of sys.platform

common/battor/battor/battor_binary_dependencies.json

Index: common/battor/battor/battor_binary_dependencies.json
diff --git a/common/battor/battor/battor_binary_dependencies.json b/common/battor/battor/battor_binary_dependencies.json
index 322f564b3beff2c12aab35210f4f4f2cea2b63ac..ea5f51311a92db0f1fbcdeeff92f87bd1e3f31c1 100644
--- a/common/battor/battor/battor_binary_dependencies.json
+++ b/common/battor/battor/battor_binary_dependencies.json
@@ -12,9 +12,9 @@
             "../bin/override/avrdude"
           ]
         },
-        "linux2_x86_64": {
+        "linux_x86_64": {
           "cloud_storage_hash": "db29526605f6f95a75ab33f4060b8c330152de69",
-          "download_path": "../bin/linux2/x86_64/avrdude",
+          "download_path": "../bin/linux/x86_64/avrdude",
           "local_paths": [
             "../bin/override/avrdude"
           ]
@@ -45,9 +45,9 @@
             "../bin/override/battor_agent"
           ]
         },
-        "linux2_x86_64": {
+        "linux_x86_64": {
           "cloud_storage_hash": "bc91f0d702bf7f5c2007c70be0c11a0dc216d896",
-          "download_path": "../bin/linux2/x86_64/battor_agent",
+          "download_path": "../bin/linux/x86_64/battor_agent",
           "local_paths": [
             "../bin/override/battor_agent"
           ]
@@ -90,4 +90,4 @@
       }
     }
   }
-}
+}