virtio: vhost-user: cras: fix build
virtio: vhost-user: cras: fix build

Another one in the long tradition of forgetting to update cras...

BUG=None
TEST=emerge crosvm passes for Hatch.

Change-Id: Id2a2675ffbc7bcd2908f4682055b7848321bbe0a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3744915
Reviewed-by: Keiichi Watanabe <815e4e8f7c92a23424d7c3f51ead622bcedbc720@chromium.org>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Commit-Queue: Alexandre Courbot <301cd6a3ea50a894b4b51e385c5eb12b9a4ffc0c@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm