headers: allow GetNumaHighestNodeNumber in Win10 19H1 UWP builds

It is not allowed in older SDK. It won't compile or won't link. The target DLL
will likely not have the function, so it should not be used when targetting older
Windows 10 versions in UWP mode.

Signed-off-by: LIU Hao <lh_mouse@126.com>
diff --git a/mingw-w64-headers/include/systemtopologyapi.h b/mingw-w64-headers/include/systemtopologyapi.h
index d94e42f..c83548b 100644
--- a/mingw-w64-headers/include/systemtopologyapi.h
+++ b/mingw-w64-headers/include/systemtopologyapi.h
@@ -14,9 +14,11 @@
 extern "C" {
 #endif
 
-#if WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
+#if WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP) || NTDDI_VERSION >= NTDDI_WIN10_19H1
   WINBASEAPI WINBOOL WINAPI GetNumaHighestNodeNumber (PULONG HighestNodeNumber);
+#endif
 
+#if WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
 #if _WIN32_WINNT >= 0x0601
   WINBASEAPI WINBOOL WINAPI GetNumaNodeProcessorMaskEx (USHORT Node, PGROUP_AFFINITY ProcessorMask);
 #endif