Merge changes I0b683290,I69a84bf9 into cuttlefish-testing

* changes:
  Switch console from ISA to PCI serial port
  Give ivshmem-doorbell a fixed PCI address
tree: cac03d8074774ec21364c5435e338c959ace767d
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS