Util (Windows): add nt.h and use it

src/detection/battery/battery_windows.c

@@ -1,6 +1,7 @@
 #include "battery.h"
 
 #include "common/io/io.h"
+#include "util/windows/nt.h"
 #include "util/windows/unicode.h"
 #include "util/mallocHelper.h"
 #include "util/smbiosHelper.h"
@@ -12,16 +13,6 @@
 #include <devguid.h>
 #include <winternl.h>
 
-NTSYSCALLAPI
-NTSTATUS
-NTAPI
-NtPowerInformation(
-    IN POWER_INFORMATION_LEVEL InformationLevel,
-    IN PVOID InputBuffer OPTIONAL,
-    IN ULONG InputBufferLength,
-    OUT PVOID OutputBuffer OPTIONAL,
-    IN ULONG OutputBufferLength);
-
 static inline void wrapSetupDiDestroyDeviceInfoList(HDEVINFO* hdev)
 {
     if(*hdev)

src/util/platform/FFPlatform_windows.c

@@ -3,15 +3,11 @@
 #include "util/stringUtils.h"
 #include "util/windows/unicode.h"
 #include "util/windows/registry.h"
+#include "util/windows/nt.h"
 
-#include <winternl.h>
 #include <Windows.h>
 #include <shlobj.h>
 
-NTSTATUS NTAPI RtlGetVersion(
-    _Inout_ PRTL_OSVERSIONINFOW lpVersionInformation
-);
-
 static void getExePath(FFPlatform* platform)
 {
     wchar_t exePathW[MAX_PATH];

src/util/windows/nt.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <winnt.h>
+#include <winternl.h>
+
+typedef struct _PROCESSOR_POWER_INFORMATION {
+  ULONG Number;
+  ULONG MaxMhz;
+  ULONG CurrentMhz;
+  ULONG MhzLimit;
+  ULONG MaxIdleState;
+  ULONG CurrentIdleState;
+} PROCESSOR_POWER_INFORMATION, *PPROCESSOR_POWER_INFORMATION;
+
+NTSTATUS NTAPI NtPowerInformation(
+    IN POWER_INFORMATION_LEVEL InformationLevel,
+    IN PVOID InputBuffer OPTIONAL,
+    IN ULONG InputBufferLength,
+    OUT PVOID OutputBuffer OPTIONAL,
+    IN ULONG OutputBufferLength);
+
+
+NTSTATUS NTAPI RtlGetVersion(
+    _Inout_ PRTL_OSVERSIONINFOW lpVersionInformation
+);