[armv8crypto] Fix cryptodev probe logic in armv8crypto

Add missing break to prevent falling through to the default case statement
and returning EINVAL for all session configs.

Sponsored by:	Ampere Computing
Submitted by:	Klara, Inc.

sys/crypto/armv8/armv8_crypto.c

@@ -207,6 +207,7 @@ armv8_crypto_probesession(device_t dev,
 		default:
 			return (EINVAL);
 		}
+		break;
 	default:
 		return (EINVAL);
 	}