Fix gas calculation (#1567) (#1570)

(cherry picked from commit bfaf589)

Co-authored-by: Christoph Otter <chris@confio.gmbh>

x/wasm/keeper/query_plugins.go

@@ -72,7 +72,7 @@ func (q QueryHandler) Query(request wasmvmtypes.QueryRequest, gasLimit uint64) (
 }
 
 func (q QueryHandler) GasConsumed() uint64 {
-	return q.Ctx.GasMeter().GasConsumed()
+	return q.gasRegister.ToWasmVMGas(q.Ctx.GasMeter().GasConsumed())
 }
 
 type CustomQuerier func(ctx sdk.Context, request json.RawMessage) ([]byte, error)