Fixing Field intialization for Arm64

Commit migrated from https://github.com/dotnet/corefx/commit/579d5424507b1ff356cc64cfe4cd68a730755bbf

diff --git a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/System/Runtime/InteropServices/RuntimeInformation/RuntimeInformation.Windows.cs b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/System/Runtime/InteropServices/RuntimeInformation/RuntimeInformation.Windows.cs
index f337767..e7fcdd0 100644 (file)
--- a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/System/Runtime/InteropServices/RuntimeInformation/RuntimeInformation.Windows.cs
+++ b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/System/Runtime/InteropServices/RuntimeInformation/RuntimeInformation.Windows.cs
@@ -92,7 +92,7 @@ namespace System.Runtime.InteropServices
                         switch((Interop.mincore.ProcessorArchitecture)sysInfo.wProcessorArchitecture)
                         {
                             case Interop.mincore.ProcessorArchitecture.Processor_Architecture_ARM64:
-                                s_osArch = Architecture.Arm64;
+                                s_processArch = Architecture.Arm64;
                                 break;
                             case Interop.mincore.ProcessorArchitecture.Processor_Architecture_ARM:
                                 s_processArch = Architecture.Arm;