s390/zcrypt: add missing memory clobber to ap_qci inline assembly

The ap_qci() inline assembly writes to memory (*config) but misses to
tell the compiler about it. Add the missing memory clobber to fix
this.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/crypto/ap_asm.h

@@ -108,7 +108,7 @@ static inline int ap_qci(void *config)
 		EX_TABLE(0b, 1b)
 		: "+d" (reg0), "+d" (reg1), "+d" (reg2)
 		:
-		: "cc");
+		: "cc", "memory");
 
 	return reg1;
 }