multiboot2-header: fix clippy

Author: phip1611

multiboot2-header/src/tags.rs

@@ -19,7 +19,7 @@ pub enum HeaderTagISA {
 /// from the example C code at the bottom of the Multiboot2 specification. This value
 /// stands in the `typ` property of [`crate::tags::HeaderTag`].
 #[repr(u16)]
-#[derive(Copy, Clone, Debug, PartialEq)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub enum HeaderTagType {
     /// Type for [`crate::EndHeaderTag`].
     End = 0,
@@ -54,7 +54,7 @@ impl HeaderTagType {
 
 /// Flags for Multiboot2 header tags.
 #[repr(u16)]
-#[derive(Copy, Clone, Debug, PartialEq)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub enum HeaderTagFlag {
     Required = 0,
     Optional = 1,