hw: Include the VMWare devices only in the x86 targets

It seems a little bit weird that the para-virtualized x86 VMWare
devices "vmware-svga" and "vmxnet3" also show up in non-x86 targets.
They are likely pretty useless there (since the guest OSes likely
do not have any drivers for those enabled), so let's change this and
only enable those devices by default for the classical x86 targets.

Message-Id: <20221213095144.42355-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
diff --git a/hw/net/Kconfig b/hw/net/Kconfig
index 6d795ec..1cc1c57 100644
--- a/hw/net/Kconfig
+++ b/hw/net/Kconfig
@@ -51,7 +51,7 @@
 
 config VMXNET3_PCI
     bool
-    default y if PCI_DEVICES
+    default y if PCI_DEVICES && PC_PCI
     depends on PCI
 
 config SMC91C111