Merge "Add explanations for FusedActivationFunc values"

@VintfStability

@Backing(type="int")

enum FusedActivationFunc {

    /**

     * No activation.

     */

    NONE,

    /**

     * ReLU(x) = max(0, x)

     */

    RELU,

    /**

     * ReLU1(x) = min(1, max(-1, x))

     */

    RELU1,

    /**

     * ReLU6(x) = min(6, max(0, x))

     */

    RELU6,

}