Convert some prebuilts projects to shallow clones

Saves about 100 GB of disk space.

Before:

  $ du -sh android-emulator.git/ clang/ qemu-kernel.git/ module_sdk/ tools.git/ sdk.git/ rust.git/ runtime.git/ r8.git/
  25G     android-emulator.git/
  25G     clang/
  12G     qemu-kernel.git/
  12G     module_sdk/
  9.0G    tools.git/
  8.0G    sdk.git/
  7.1G    rust.git/
  5.0G    runtime.git/
  3.3G    r8.git/

After:

  $ du -sh android-emulator.git/ clang/ qemu-kernel.git/ module_sdk/ tools.git/ sdk.git/ rust.git/ runtime.git/ r8.git/
  379M    android-emulator.git/
  2.4G    clang/
  176M    qemu-kernel.git/
  32K     module_sdk/
  894M    tools.git/
  502M    sdk.git/
  325M    rust.git/
  23M     runtime.git/
  12M     r8.git/

Change-Id: Ic6f1eedd52dccf2957eb517c5ce7444adafca917
1 file changed
tree: 7f8c3c32cde22a7ac5f1bd7e7effb2a84534f363
  1. default.xml