crypto: ccree - Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/ccree/cc_cipher.c

@@ -97,6 +97,7 @@ static int validate_keys_sizes(struct cc_cipher_ctx *ctx_p, u32 size)
 	case S_DIN_to_SM4:
 		if (size == SM4_KEY_SIZE)
 			return 0;
+		break;
 	default:
 		break;
 	}
@@ -139,9 +140,11 @@ static int validate_data_size(struct cc_cipher_ctx *ctx_p,
 		case DRV_CIPHER_CBC:
 			if (IS_ALIGNED(size, SM4_BLOCK_SIZE))
 				return 0;
+			break;
 		default:
 			break;
 		}
+		break;
 	default:
 		break;
 	}