Scope CreateFileMapping2 to valid API partitions

[jstoecker]

Description:
Limits the use of CreateFileMapping2 to API partitions that support it.

Motivation and Context
This change is necessary to build for WINAPI_FAMILY_GAMES, which is used with the GDK toolchain. The header that exposes the CreateFileMapping2 API limits it to desktop and system partitions (not just NTDDI_WIN10_RS5), so compiling with WINAPI_FAMILY_GAMES will fail with an unresolved symbol. See the declaration of this API from memoryapi.h

#if (NTDDI_VERSION >= NTDDI_WIN10_RS5)

#pragma region Desktop Family or OneCore Family
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)

WINBASEAPI
_Ret_maybenull_
HANDLE
WINAPI
CreateFileMapping2(
    _In_ HANDLE File,
    _In_opt_ SECURITY_ATTRIBUTES* SecurityAttributes,
    _In_ ULONG DesiredAccess,
    _In_ ULONG PageProtection,
    _In_ ULONG AllocationAttributes,
    _In_ ULONG64 MaximumSize,
    _In_opt_ PCWSTR Name,
    _Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters,
    _In_ ULONG ParameterCount
    );

#endif /* WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM) */
#pragma endregion

[snnn]

We should cherry-pick it to the last release. @faxu

I think our official builds didn't hit this line of code, because they all target Windows 7 or 8.

See: https://github.com/microsoft/onnxruntime/blob/master/cmake/CMakeLists.txt#L2057