kconfigcheck: add new category for virtualization support

For including options to making sure KVM (and others later) is enabled in the kernel.

kconfigcheck.toml

@@ -22,7 +22,6 @@ community = [
 	"category:netboot",
 	"category:nftables",
 	"category:usb_gadgets",
-	"category:virt",
 	"category:waydroid",
 	"category:wireguard",
 	"category:zram",