Address review comments

Author: DanielKristofKiss

compiler-rt/lib/builtins/cpu_model/aarch64/fmv/windows.inc

@@ -1,6 +1,5 @@
-#ifndef _ARM64_
-#define _ARM64_
-#endif
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
 #include <processthreadsapi.h>
 #include <stdint.h>
 

compiler-rt/lib/builtins/cpu_model/cpu_model.h

@@ -31,7 +31,7 @@
 // We're choosing init priority 90 to force our constructors to run before any
 // constructors in the end user application (starting at priority 101). This
 // value matches the libgcc choice for the same functions.
-#ifdef _WIN64
+#ifdef _WIN32
 // Contructor that replaces the ifunc runs currently with prio 10, see
 // the LowerIFuncPass. The resolver of FMV depends on the cpu features so set
 // the priority to 9.