Merge changes from topic "schuffelen-2019-12-04-cf-kernel-args"

* changes:
  Delay constructing the kernel command line.
  Move some kernel cmdline args to BoardConfig.mk
  Specify kernel arguments directly to VmManager.
tree: 15dfe51477fdd61995900be5c79bd918577a05e5
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS
  9. TEST_MAPPING