Merge "Fix nullability annotations on equals methods" into main

package android.media.audiopolicy;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.annotation.SystemApi;

import android.media.AudioAttributes;

import android.media.AudioSystem;

    }

    @Override

    public boolean equals(@NonNull Object o) {

    public boolean equals(@Nullable Object o) {

        if (this == o) return true;

        if (o == null || getClass() != o.getClass()) return false;