Fix LTO warnings

Signed-off-by: falkTX <falktx@falktx.com>

src/Shelves.cpp

@@ -119,7 +119,7 @@ struct Shelves : Module {
 		int channels = std::max(inputs[IN_INPUT].getChannels(), 1);
 
 		// Reuse the same frame object for multiple engines because the params aren't touched.
-		shelves::ShelvesEngine::Frame frame;
+		shelves::ShelvesEngine::Frame frame = {};
 		frame.pre_gain = preGain;
 
 		frame.hs_freq_knob = rescale(params[HS_FREQ_PARAM].getValue(), freqMin, freqMax, 0.f, 1.f);

src/Streams.cpp

@@ -275,7 +275,7 @@ struct Streams : Module {
 
 		// Reuse the same frame object for multiple engines because the params
 		// aren't touched.
-		streams::StreamsEngine::Frame frame;
+		streams::StreamsEngine::Frame frame = {};
 
 		frame.ch1.shape_knob          = params[CH1_SHAPE_PARAM]    .getValue();
 		frame.ch1.mod_knob            = params[CH1_MOD_PARAM]      .getValue();