Depend on kvm-bindings =0.3.0

The newer 0.3.1 release has a fixed dependency on a conflicting version
of vmm-sys-utils so it is necessary to fix this crate to depend on the
older version which has a more flexible vmm-sys-utils dependency.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

Author: rbradford

Cargo.toml

@@ -10,7 +10,7 @@ license = "Apache-2.0 OR MIT"
 
 [dependencies]
 libc = ">=0.2.39"
-kvm-bindings = { version = ">=0.2.0", features = ["fam-wrappers"] }
+kvm-bindings = { version = "=0.3.0", features = ["fam-wrappers"] }
 vmm-sys-util = ">=0.8.0"
 
 [dev-dependencies]