Explicitly derive Eq and PartalEq for bitflags types

Apparently the new version of bitflags does not explicitly derive Eq and
PartialEq.

This change should have gone in with PR #865.

Signed-off-by: mulhern <[email protected]>

Author: mulkieran

src/core/dm_flags.rs

@@ -6,7 +6,7 @@ use crate::core::dm_ioctl as dmi;
 
 bitflags! {
     /// Flags used by devicemapper.
-    #[derive(Clone, Copy, Debug, Default)]
+    #[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
     pub struct DmFlags: dmi::__u32 {
         /// In: Device should be read-only.
         /// Out: Device is read-only.
@@ -52,7 +52,7 @@ bitflags! {
     /// Flags used by devicemapper, see:
     /// https://sourceware.org/git/?p=lvm2.git;a=blob;f=libdm/libdevmapper.h#l3627
     /// for complete information about the meaning of the flags.
-    #[derive(Clone, Copy, Debug, Default)]
+    #[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
     pub struct DmUdevFlags: u32 {
         /// Disables basic device-mapper udev rules that create symlinks in /dev/<DM_DIR>
         /// directory.