Support Linux 6.11

To align with the virtio subsystem changes introduced in Linux kernel
v6.11 API, this commit updates the virtqueue setup logic to use
`struct virtqueue_info` and the new `virtio_find_vqs()` interface.

The old `virtio_find_vqs()` interface has been reworked and renamed to
use `struct virtqueue_info` starting from Linux 6.11, replacing the
legacy helpers entirely.

Since the original code uses `virtio_find_vqs()` (which internally
passes `NULL` for ctx), `ctx` is conservatively set to `false`.

ref:
Introduce struct virtqueue_info and find_vqs_info() config op
torvalds/linux@c502eb8

Rename virtio_find_vqs_info() to virtio_find_vqs
torvalds/linux@6c85d6b

Remove legacy virtio_find_vqs() and virtio_find_vqs_ctx() helpers
torvalds/linux@3e8d51c

Author: horseface1110

vwifi.c

@@ -17,7 +17,6 @@
 #include <linux/netlink.h>
 #include <net/sock.h>
 
-
 MODULE_LICENSE("Dual MIT/GPL");
 MODULE_AUTHOR("National Cheng Kung University, Taiwan");
 MODULE_DESCRIPTION("virtual cfg80211 driver");
@@ -3173,7 +3172,7 @@ static int vwifi_virtio_init_vqs(struct virtio_device *vdev)
     for (int i = 0; i < VWIFI_NUM_VQS; i++) {
         vqs_info[i].callback = callbacks[i];
         vqs_info[i].name = names[i];
-        vqs_info[i].ctx = NULL;
+        vqs_info[i].ctx = false;
     }
 
     return virtio_find_vqs(vdev, VWIFI_NUM_VQS, vwifi_vqs, vqs_info, NULL);