ntdll: Fix the hardcoded selector values for ARM64.

dlls/ntdll/process.c

@@ -249,13 +249,14 @@ NTSTATUS WINAPI RtlWow64GetThreadSelectorEntry( HANDLE handle, THREAD_DESCRIPTOR
     if (RtlWow64GetThreadContext( handle, &context ))
     {
         /* hardcoded values */
-        context.SegCs = 0x23;
 #ifdef __x86_64__
+        context.SegCs = 0x23;
         __asm__( "movw %%fs,%0" : "=m" (context.SegFs) );
         __asm__( "movw %%ss,%0" : "=m" (context.SegSs) );
 #else
-        context.SegSs = 0x2b;
-        context.SegFs = 0x53;
+        context.SegCs = 0x1b;
+        context.SegSs = 0x23;
+        context.SegFs = 0x3b;
 #endif
     }