Fix external linkage

Author: eduardo-vp

src/coreclr/utilcode/util.cpp

@@ -979,10 +979,10 @@ int GetTotalProcessorCount()
 }
 
 // The cached number of CPUs available for the current process
-static DWORD g_currentProcessCpuCount = 0;
+DWORD g_currentProcessCpuCount = 0;
 
 // The cached flag indicating whether there is a cpu quota limit
-static BOOL g_isCpuQuotaLimited = false;
+BOOL g_isCpuQuotaLimited = false;
 
 //******************************************************************************
 // Returns the number of processors that a process has been configured to run on

src/coreclr/vm/syncblk.cpp

@@ -1552,9 +1552,9 @@ BOOL ObjHeader::TryEnterObjMonitor(INT32 timeOut)
     return GetSyncBlock()->TryEnterMonitor(timeOut);
 }
 
-extern DWORD g_currentProcessCpuCount = 0;
+extern DWORD g_currentProcessCpuCount;
 
-extern BOOL g_isCpuQuotaLimited = false;
+extern BOOL g_isCpuQuotaLimited;
 
 AwareLock::EnterHelperResult ObjHeader::EnterObjMonitorHelperSpin(Thread* pCurThread)
 {

src/mono/System.Private.CoreLib/src/System/Environment.Mono.cs

@@ -24,6 +24,9 @@ public static extern int ExitCode
         [MethodImplAttribute(MethodImplOptions.InternalCall)]
         private static extern int GetProcessorCount();
 
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        private static extern bool GetIsCpuQuotaLimited();
+
         public static extern int TickCount
         {
             [MethodImplAttribute(MethodImplOptions.InternalCall)]