build: Bump the minimum version of vm-memory

"0.1.0" means every version >= 0.1.0 < 0.2.0 but this breaks as the
latest vm-memory release is 0.2.0.

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

Author: rbradford

Cargo.toml

@@ -11,4 +11,4 @@ elf = []
 bzimage = []
 
 [dependencies]
-vm-memory = {version = "0.1.0", features = ["backend-mmap"]}
+vm-memory = {version = "0.2.0", features = ["backend-mmap"]}