message: Update BUILD.bazel
  Add a definition for linux_aarch64
diff: @@ -63,6 +63,11 @@ cc_library(
  "-DAWS_SDK_VERSION_PATCH=8",
  ],
  defines = select({
  + "@org_tensorflow//tensorflow:linux_aarch64": [
  + "PLATFORM_LINUX",
  + "ENABLE_CURL_CLIENT",
  + "ENABLE_NO_ENCRYPTION",
  + ],
  "@org_tensorflow//tensorflow:linux_x86_64": [
  "PLATFORM_LINUX",
  "ENABLE_CURL_CLIENT",
  