Add new device path node subtypes

We didn't have `MESSAGING_REST_SERVICE` before because the spec
incorrectly gave it the same subtype as `MESSAGING_NVDIMM_NAMESPACE`;
that was corrected in v2.9 of the spec.

`MESSAGING_NVME_OF_NAMESPACE` is new in v2.10 of the spec.

Author: nicholasbishop

CHANGELOG.md

@@ -8,6 +8,8 @@
 - Added `Guid::from_bytes` and `Guid::to_bytes`.
 - Added `UnalignedSlice` for representing a reference to an unaligned
   slice.
+- Added `DeviceSubType::MESSAGING_REST_SERVICE` and
+  `DeviceSubType::MESSAGING_NVME_OF_NAMESPACE`.
 
 ### Changed
 

src/proto/device_path/mod.rs

@@ -527,6 +527,10 @@ impl DeviceSubType {
     pub const MESSAGING_DNS: DeviceSubType = DeviceSubType(31);
     /// NVDIMM Namespace Device Path.
     pub const MESSAGING_NVDIMM_NAMESPACE: DeviceSubType = DeviceSubType(32);
+    /// REST Service Device Path.
+    pub const MESSAGING_REST_SERVICE: DeviceSubType = DeviceSubType(33);
+    /// NVME over Fabric (NVMe-oF) Namespace Device Path.
+    pub const MESSAGING_NVME_OF_NAMESPACE: DeviceSubType = DeviceSubType(34);
 
     /// Hard Drive Media Device Path.
     pub const MEDIA_HARD_DRIVE: DeviceSubType = DeviceSubType(1);