[MIPS] thread_info.h: kmalloc + memset conversion to kzalloc

Signed-off-by: Mariusz Kozlowski <[e-mail]>
Signed-off-by: Ralf Baechle <[e-mail]>

include/asm-mips/thread_info.h

···
 ({								\
 	struct thread_info *ret;				\
 								\
-	ret = kmalloc(THREAD_SIZE, GFP_KERNEL);			\
-	if (ret)						\
-		memset(ret, 0, THREAD_SIZE);			\
+	ret = kzalloc(THREAD_SIZE, GFP_KERNEL);			\
+								\
 	ret;							\
 })
 #else