Fix xrt_hip.so static initialization order fiasco (Xilinx#9667)

Initialize global `device_cache` in same TU that uses it during
static global initialiation of hip devices.

Bug exposed in Debian upstreamed packages, compiled with `-flto=auto
and -ffat-lto-objects`.

This is likely not the final fix, complex initiaziation during static
global initialization is not correct.  Initialization of devices can
throw, throw during static global initialiation is not kosher.

Signed-off-by: Soren Soe <2106410+stsoe@users.noreply.github.com>

Author: stsoe

src/runtime_src/hip/api/hip_device.cpp

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: Apache-2.0
-// Copyright (C) 2023-2025 Advanced Micro Devices, Inc. All rights reserved.
+// Copyright (C) 2023-2026 Advanced Micro Devices, Inc. All rights reserved.
 #include "core/include/xrt/experimental/xrt_system.h"
 #include "core/common/device.h"
 #include "core/common/query_requests.h"
@@ -19,6 +19,10 @@
 
 // forward declaration
 namespace xrt::core::hip {
+// Defined first so it is initialized before the global x below (same
+// TU order).
+xrt_core::handle_map<device_handle, std::unique_ptr<device>> device_cache; //NOLINT
+
 static void
 device_init();
 }

src/runtime_src/hip/core/device.cpp

@@ -1,12 +1,9 @@
 // SPDX-License-Identifier: Apache-2.0
-// Copyright (C) 2023-2024 Advanced Micro Devices, Inc. All rights reserved.
+// Copyright (C) 2023-2026 Advanced Micro Devices, Inc. All rights reserved.
 
 #include "device.h"
 
 namespace xrt::core::hip {
-// Implementation
-//we should override clang-tidy warning by adding NOLINT since device_cache is non-const parameter
-xrt_core::handle_map<device_handle, std::unique_ptr<device>> device_cache; //NOLINT
 
 device::
 device(uint32_t device_id)