Add EADDRNOTAVAIL error to rust

This will be used for network drivers.

Signed-off-by: Finn Behrens <me@kloenk.de>

Author: kloenk

rust/kernel/error.rs

@@ -126,6 +126,9 @@ impl Error {
     /// Math result not representable.
     pub const ERANGE: Self = Error(-(bindings::ERANGE as i32));
 
+    /// Cannot assign requested address.
+    pub const EADDRNOTAVAIL: Self = Error(-(bindings::EADDRNOTAVAIL as i32));
+
     /// Restart the system call.
     pub const ERESTARTSYS: Self = Error(-(bindings::ERESTARTSYS as i32));