Fix build breakage in vulkan tests

Fix bug introduced by #341. Move vulkan/vulkan_win32.h include to _WIN64 only section.

catch/unit/vulkan_interop/vulkan_test.hh

@@ -21,7 +21,6 @@ THE SOFTWARE.
 
 #include <vulkan/vulkan.h>
 
-
 #ifdef _WIN64
 
 #include <Windows.h>
@@ -33,10 +32,10 @@ THE SOFTWARE.
 #include <windef.h>
 #include <aclapi.h>
 #include <securitybaseapi.h>
+#include <vulkan/vulkan_win32.h>
 
 #endif
 
-#include <vulkan/vulkan_win32.h>
 #include <vector>
 #include <hip_test_common.hh>
 #include <hip/hip_runtime_api.h>
@@ -334,4 +333,4 @@ VulkanTest::MappedBuffer<T> VulkanTest::CreateMappedStorage(uint32_t count,
 // Sometimes in CUDA the stream is not immediately ready after a semaphore has been signaled
 void PollStream(hipStream_t stream, hipError_t expected, uint32_t num_iterations = 5);
 
-hipExternalSemaphore_t ImportBinarySemaphore(VulkanTest& vkt);
+hipExternalSemaphore_t ImportBinarySemaphore(VulkanTest& vkt);