qemu: Re-apply ninja BDEPEND

The ninja BDEPEND was inadvertently removed in crrev/c/5359653, which
broke the Bazel builds of qemu. Reapply that BDEPEND.

BUG=b:323026468
TEST=bazel build --config=hash_tracer @portage//host/app-emulation/qemu

Cq-Depend: chromium:5359653
Change-Id: Ib1e2feb403a915da1dc075fa4c57d2da01ed1734
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/5363062
Tested-by: Tim Bain <tbain@google.com>
Auto-Submit: Tim Bain <tbain@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Commit-Queue: Raul Rangel <rrangel@chromium.org>
Commit-Queue: Tim Bain <tbain@google.com>
2 files changed