MIPS: Fix typo in a comment

The double `the' in the comment in line 344 is repeated. Remove one
of them from the comment.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/mm/c-octeon.c

@@ -341,7 +341,7 @@ asmlinkage void cache_parity_error_octeon_recoverable(void)
 }
 
 /*
- * Called when the the exception is not recoverable
+ * Called when the exception is not recoverable
  */
 
 asmlinkage void cache_parity_error_octeon_non_recoverable(void)