scope_exit: Make constexpr

Allows the use of the macro in constexpr-contexts.
Also avoids some potential problems when nesting braces inside it.

src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp

@@ -92,11 +92,11 @@ NvResult nvhost_ctrl::IocCtrlEventWait(IocCtrlEventWaitParams& params, bool is_a
 
     bool must_unmark_fail = !is_allocation;
     const u32 event_id = params.value.raw;
-    SCOPE_EXIT({
+    SCOPE_EXIT {
         if (must_unmark_fail) {
             events[event_id].fails = 0;
         }
-    });
+    };
 
     const u32 fence_id = static_cast<u32>(params.fence.id);
 

src/core/hle/service/nvdrv/nvdrv_interface.cpp

@@ -154,10 +154,10 @@ void NVDRV::Close(HLERequestContext& ctx) {
 void NVDRV::Initialize(HLERequestContext& ctx) {
     LOG_WARNING(Service_NVDRV, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 3};
-    SCOPE_EXIT({
+    SCOPE_EXIT {
         rb.Push(ResultSuccess);
         rb.PushEnum(NvResult::Success);
-    });
+    };
 
     if (is_initialized) {
         // No need to initialize again