SWDEV-86035 - Make sure the legacy lib is loaded with PAL backend

Change-Id: I5b48778c2e48549afb3fd69b0a316989c01faaef


[ROCm/clr commit: 14a6ec2c59]

projects/clr/rocclr/utils/flags.cpp

@@ -87,8 +87,12 @@ std::atomic_bool IS_PROFILER_ON(false);
 #if defined(WITH_GPU_DEVICE)
 bool IS_LEGACY = true;
 #else
+#if !defined(_WIN32) && defined(WITH_PAL_DEVICE)
+bool IS_LEGACY = true;
+#else
 bool IS_LEGACY = false;
 #endif
+#endif
 
 // static
 char* Flag::envstr_;