[SYCL] Fix WARP_SIZE=16 bug of Intel GPU (#8266)

* fix group_norm ut

* split softmax

* fix softmax

* add concat support condition

* revert debug code

* move QK_WARP_SIZE to presets.hpp

ggml/src/ggml-sycl/softmax.hpp

@@ -0,0 +1,24 @@
+//
+// MIT license
+// Copyright (C) 2024 Intel Corporation
+// SPDX-License-Identifier: MIT
+//
+
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+
+#ifndef GGML_SYCL_SOFTMAX_HPP
+#define GGML_SYCL_SOFTMAX_HPP
+
+#include "common.hpp"
+
+void ggml_sycl_op_soft_max(ggml_backend_sycl_context &ctx, const ggml_tensor *src0,
+    const ggml_tensor *src1, ggml_tensor *dst,
+    const float *src0_dd, const float *src1_dd,
+    float *dst_dd,
+    const queue_ptr &main_stream);
+
+#endif // GGML_SYCL_SOFTMAX_HPP