drivers: staging: ccree: ISO C forbids casting to and from non-scalar

Fixes the following sparse warnings:
drivers/staging/ccree/ssi_hash.c:2447:24: warning: cast to non-scalar
drivers/staging/ccree/ssi_hash.c:2447:24: warning: cast from non-scalar
drivers/staging/ccree/ssi_hash.c:2448:28: warning: cast to non-scalar
drivers/staging/ccree/ssi_hash.c:2448:28: warning: cast from non-scalar
Signed-off-by: Raphaël Beamonte <raphael.beamonte@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ccree/ssi_hash.c

@@ -2444,8 +2444,8 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata)
 
 		/* register hmac version */
 
-		if ((((struct ssi_hash_template)driver_hash[alg]).hw_mode != DRV_CIPHER_XCBC_MAC) &&
-			(((struct ssi_hash_template)driver_hash[alg]).hw_mode != DRV_CIPHER_CMAC)) {
+		if ((((struct ssi_hash_template *)&driver_hash[alg])->hw_mode != DRV_CIPHER_XCBC_MAC) &&
+		    (((struct ssi_hash_template *)&driver_hash[alg])->hw_mode != DRV_CIPHER_CMAC)) {
 			t_alg = ssi_hash_create_alg(&driver_hash[alg], true);
 			if (IS_ERR(t_alg)) {
 				rc = PTR_ERR(t_alg);