Import vfio-user to rust third-party

Summary: Need libvfio-user for qmodel direct

Reviewed By: capickett, peterdelevoryas

Differential Revision:
D67499720

Privacy Context Container: L1188860

fbshipit-source-id: 2e226d6767423575e8fa2e0871ef99382ac6a741

Cargo.toml

@@ -19,6 +19,9 @@ tracing-attributes = { git = "https://github.com/tokio-rs/tracing.git", rev = "7
 uefisettings = { git = "https://github.com/linuxboot/uefisettings", rev = "f16daed1d2bd1216204fd24e876c6477d03aebb3" }
 uefisettings_backend_thrift = { git = "https://github.com/linuxboot/uefisettings", rev = "f16daed1d2bd1216204fd24e876c6477d03aebb3" }
 
+[patch."https://github.com/rust-vmm/vfio"]
+vfio-bindings = "0.3.1"
+
 [workspace]
 members = [
   "shed/abomonable_string",