rust: error: Add ECANCELED from uapi/asm-generic/errno.h

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

rust/kernel/error.rs

@@ -67,6 +67,7 @@ pub mod code {
     declare_err!(ENODATA, "No data available.");
     declare_err!(EOVERFLOW, "Value too large for defined data type.");
     declare_err!(ETIMEDOUT, "Connection timed out.");
+    declare_err!(ECANCELED, "Operation Canceled.");
     declare_err!(ERESTARTSYS, "Restart the system call.");
     declare_err!(ERESTARTNOINTR, "System call was interrupted by a signal and will be restarted.");
     declare_err!(ERESTARTNOHAND, "Restart if no handler.");