am aafed1df: add link to required permission from ACTION_RESPOND_VIA_MESSAGE

     * call. By default, the MMS app consumes this message and sends a text message to the caller. A

     * third party app can provide this functionality in lieu of MMS app by consuming this Intent

     * and sending the message using their own messaging system.  The intent contains a URI

     * describing the recipient, and an EXTRA containg the message itself.

     * <p>

     * describing the recipient, and an EXTRA containing the message itself.

     * <p class="note"><strong>Note:</strong>

     * The intent-filter which consumes this Intent needs to be in a service which requires the

     * permission SEND_RESPOND_VIA_MESSAGE.

     * permission {@link android.Manifest.permission#SEND_RESPOND_VIA_MESSAGE}.</p>

     *

     * <p>

     * {@link android.content.Intent#getData} is a URI describing the recipient of the message.