[ld2412] Use a user provided default constructor for DistanceResolutionSelect (#19185)

esphome/components/ld2412/select/distance_resolution_select.h

@@ -7,7 +7,8 @@ namespace esphome::ld2412 {
 
 class DistanceResolutionSelect final : public select::Select, public Parented<LD2412Component> {
  public:
-  DistanceResolutionSelect() = default;
+  // User provided, not "= default": `new(p) DistanceResolutionSelect()` would zero-fill .bss that is already zero.
+  DistanceResolutionSelect() {}
 
  protected:
   void control(size_t index) override;