Unwanted left margin/padding to logo in toolbar

This is my application toolbar

I have added menu button and logo in following manner.

final ActionBar ab = getSupportActionBar();
ab.setHomeAsUpIndicator(R.drawable.ic_menu);
getSupportActionBar().setLogo(R.drawable.ic_parking);

I have tried doling following in toolbar xml but it did not help.

android:contentInsetLeft="0dp"
android:contentInsetStart="0dp"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
android:contentInsetRight="0dp"
android:contentInsetEnd="0dp"
app:contentInsetRight="0dp"
app:contentInsetEnd="0dp" 

What I want to do is to get my logo close to menu button and apply some padding to it.

Update Here is my xml file

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:id="@+id/root_login_activity"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:layout_collapseMode="pin"

        android:contentInsetLeft="0dp"
        android:contentInsetStart="0dp"
        app:contentInsetLeft="0dp"
        app:contentInsetStart="0dp"
        android:contentInsetRight="0dp"
        android:contentInsetEnd="0dp"
        app:contentInsetRight="0dp"
        app:contentInsetEnd="0dp"

        />

    <android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingBottom="@dimen/layout_margin"
        android:paddingLeft="@dimen/layout_margin"
        android:paddingRight="@dimen/layout_margin"
        android:paddingTop="@dimen/layout_margin"
        android:layout_below="@+id/toolbar"
        android:background="@drawable/background"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            >
        </RelativeLayout>
    </android.support.v4.widget.NestedScrollView>

</RelativeLayout>