[MIPS] Add missing backslashes to macro definitions.

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

include/asm-mips/hazards.h

@@ -69,10 +69,10 @@
  * Use a macro for ehb unless explicit support for MIPSR2 is enabled
  */
 
-#define irq_enable_hazard
+#define irq_enable_hazard						\
 	_ehb
 
-#define irq_disable_hazard
+#define irq_disable_hazard						\
 	_ehb
 
 #elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_RM9000)