selftests/bpf: add vsock to vmtest.sh

Add vsock loopback to the test kernel.

This allows sockmap for vsock to be tested.
Signed-off-by: Bobby Eshleman <bobby.eshleman@bytedance.com>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/bpf/config.aarch64

@@ -176,6 +176,8 @@ CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
 CONFIG_VIRTIO_MMIO=y
 CONFIG_VIRTIO_NET=y
 CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_VSOCKETS_COMMON=y
 CONFIG_VLAN_8021Q=y
 CONFIG_VSOCKETS=y
+CONFIG_VSOCKETS_LOOPBACK=y
 CONFIG_XFRM_USER=y

tools/testing/selftests/bpf/config.s390x

@@ -140,5 +140,8 @@ CONFIG_VIRTIO_BALLOON=y
 CONFIG_VIRTIO_BLK=y
 CONFIG_VIRTIO_NET=y
 CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_VSOCKETS_COMMON=y
 CONFIG_VLAN_8021Q=y
+CONFIG_VSOCKETS=y
+CONFIG_VSOCKETS_LOOPBACK=y
 CONFIG_XFRM_USER=y

tools/testing/selftests/bpf/config.x86_64

@@ -234,7 +234,10 @@ CONFIG_VIRTIO_BLK=y
 CONFIG_VIRTIO_CONSOLE=y
 CONFIG_VIRTIO_NET=y
 CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_VSOCKETS_COMMON=y
 CONFIG_VLAN_8021Q=y
+CONFIG_VSOCKETS=y
+CONFIG_VSOCKETS_LOOPBACK=y
 CONFIG_X86_ACPI_CPUFREQ=y
 CONFIG_X86_CPUID=y
 CONFIG_X86_MSR=y