Merge "[virtio] Refactor VirtIOBlkIterator to PciTransportIterator" am: 54615f56f5

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2619418

Change-Id: I2e4f08066b7598b093256cae979afa0496886677
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>