test/snp: drop multicast from packet filter.

The test case does not use multicast.  The edk2 virtio-net driver
does not support multicast.  Drop it from packet filter.

Signed-off-by: Gerd Hoffmann <[email protected]>

Author: kraxel

uefi-test-runner/src/proto/network/snp.rs

@@ -45,7 +45,7 @@ pub fn test() {
         // Set receive filters
         simple_network
             .receive_filters(
-                ReceiveFlags::UNICAST | ReceiveFlags::MULTICAST | ReceiveFlags::BROADCAST,
+                ReceiveFlags::UNICAST | ReceiveFlags::BROADCAST,
                 ReceiveFlags::empty(),
                 false,
                 None,