BTM_VendorSpecificCommand() function

* Function BTM_VendorSpecificCommand * Description Send a vendor specific HCI command to the controller. * Returns * BTM_SUCCESS Command sent. Does not expect command complete * event. (command cmpl callback param is NULL) * BTM_CMD_STARTED Command sent. Waiting for command cmpl event. * Notes * Opcode will be OR'd with HCI_GRP_VENDOR_SPECIFIC.