SDK: add dev-python/grpcio for VMTests

After removing cloud-logging,
VMTests complain that it cannot import grpc.
This CL adds dev-python/grpcio to SDK for VM
tests.

BUG=b/303317695
TEST=presubmit SDK build and local image build
RELEASE_NOTE=Nonie

Change-Id: I1aa00ed1dc4b5feb5406be064cd0b892bc26b169
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/chromiumos-overlay/+/69051
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Chenglong Tang <chenglongtang@google.com>
1 file changed