Add 2 CF products to make x86 and x86_64 GSIs

The purpose of these 2 products is to produc system images as close
to GSIs built from aosp_x86 and aosp_x86_64 as posible. Currently,
the system images built from these 2 products contain all the
components/configurations in current GSIs, except
  /system/fake-libs/libart.so (x86 version)
which is not used by VTS, CTS on GSI, so should be fine for now.

The system images of these 2 products also contain the following:
  /system/etc/bluetooth/controller_properties.json
which may need to be removed to vendor later.

Future GSIs can leverage the pre-submit and post-submit testing
infrastructure for Cuttlefish, and their quality and stability can
be improved using these 2 products.

Bug: 118730375
Test: The following products can be built and booted to home screen
      successfully. 4G LTE and WLAN both work.
      $ lunch aosp_cf_x86_gsi-userdebug; m -j
      $ lunch aosp_cf_x86_64_gsi-userdebug; m -j

Change-Id: Ibc5145652a0063c11d81309e2f078fac2a965983
5 files changed