Add contentDescription attribute to setup wizard video and image

                android:id="@+id/setup_welcome_video"

                android:layout_width="match_parent"

                android:layout_height="wrap_content"

                android:background="@color/setup_background" />

                android:background="@color/setup_background"

                android:contentDescription="@string/setup_welcome_additional_description"/>

            <ImageView

                android:id="@+id/setup_welcome_image"

                android:layout_width="match_parent"

                android:layout_height="wrap_content"

                android:adjustViewBounds="true"

                android:visibility="gone" />

                android:visibility="gone"

                android:contentDescription="@string/setup_welcome_additional_description"/>

        </LinearLayout>

        <View

            android:layout_weight="@integer/setup_welcome_video_end_padding_weight_in_screen"