[OpenMP] Force initialization of global device environment

Summary:
This causes issues when we omit this, which requires a constructor from
an incompatible address space and bad things happen.

openmp/device/src/Configuration.cpp

@@ -28,8 +28,8 @@ using namespace ompx;
 // This variable should be visible to the plugin so we override the default
 // hidden visibility.
 [[gnu::used, gnu::retain, gnu::weak,
-  gnu::visibility(
-      "protected")]] Constant<DeviceEnvironmentTy> __omp_rtl_device_environment;
+  gnu::visibility("protected")]] Constant<DeviceEnvironmentTy>
+    __omp_rtl_device_environment{};
 
 uint32_t config::getAssumeTeamsOversubscription() {
   return __omp_rtl_assume_teams_oversubscription;