mips: octeon: cvmx-l2c.h: delete duplicated word

Delete the repeated word "Returns".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/include/asm/octeon/cvmx-l2c.h

@@ -327,7 +327,7 @@ void cvmx_l2c_flush(void);
 
 /**
  *
- * Returns Returns the size of the L2 cache in bytes,
+ * Returns the size of the L2 cache in bytes,
  * -1 on error (unrecognized model)
  */
 int cvmx_l2c_get_cache_size_bytes(void);