Add --serial option to main program of host controller
am: 18ee53c6f8

Change-Id: I7caf06817b516906afb09b577b8a065e8b2044c5
tree: 8af31b0d2ceac19ec7b00d9a795128bc237b80e4
  1. harnesses/
  2. host_setup/
  3. .clang-format
  4. .gitignore
  5. OWNERS