fuzz: Add fuzzer for virtio-balloon

The fuzzer exercises the inflate, deflate and reporting events of
virtio-balloon via creating three queues and kicking three events.

Signed-off-by: Bo Chen <chen.bo@intel.com>

fuzz/Cargo.toml

@@ -39,6 +39,12 @@ versionize_derive = { git = "https://github.com/cloud-hypervisor/versionize_deri
 [workspace]
 members = ["."]
 
+[[bin]]
+name = "balloon"
+path = "fuzz_targets/balloon.rs"
+test = false
+doc = false
+
 [[bin]]
 name = "block"
 path = "fuzz_targets/block.rs"