virtio_net: enhance wake/stop tx queue statistics accounting

virtio_net: enhance wake/stop tx queue statistics accounting

This patch refines and strengthens the statistics collection of TX queue
wake/stop events introduced by commit c39add9b2423 ("virtio_net: Add TX
stopped and wake counters").

Previously, the driver only recorded partial wake/stop statistics
for TX queues. Some wake events triggered by 'skb_xmit_done()' or resume
operations were not counted, which made the per-queue metrics incomplete.

Signed-off-by: Liming Wu <liming.wu@jaguarmicro.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20251120015320.1418-1-liming.wu@jaguarmicro.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>