Fixed a bug that caused failure if fastboot or adb were not running

Bug: None
Test: ./main.py -a
Test: unit tests
Change-Id: I577b38a8b7fbf72dc080d98fb7e5d163f5fb94e3
3 files changed
tree: 951eeabf1b7d95a815e45b3fc293c0c75a85cd8f
  1. acts/
  2. tools/
  3. Android.mk
  4. PREUPLOAD.cfg