MIPS: Whitespace cleanup.

Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/dec/prom.h

@@ -49,7 +49,7 @@
 
 #ifdef CONFIG_64BIT
 
-#define prom_is_rex(magic)	1	/* KN04 and KN05 are REX PROMs.  */
+#define prom_is_rex(magic)	1	/* KN04 and KN05 are REX PROMs.	 */
 
 #else /* !CONFIG_64BIT */