blend result returns blend parameter value for TS UI

firmware/controllers/math/engine_math.cpp

@@ -450,7 +450,7 @@ void setFlatInjectorLag(float value) {
 BlendResult calculateBlend(blend_table_s& cfg, float rpm, float load) {
 	// If set to 0, skip the math as its disabled
 	if (cfg.blendParameter == GPPWM_Zero) {
-		return { 0, 0 };
+		return { 0, 0, 0 };
 	}
 
 	auto value = readGppwmChannel(cfg.blendParameter);