ieee80211 phy1: Failed to select rate control algorithm

/************************************************************************
 *      ieee80211 phy1: Failed to select rate control algorithm
 * 说明：
 *     MT7601u驱动rate control algorithm。
 *
 *                                      2017-9-15 深圳 龙华樟坑村 曾剑锋
 ***********************************************************************/

一、参考文档：
    1. Failed to select rate control algorithm
        http://rt2x00.serialmonkey.com/phpBB-static/5/t-5066.html
    2. Wireless not working with AR9285 wireless chip.
        https://forums.gentoo.org/viewtopic-p-7572800.html

二、解决办法：
    1. 参考：
        CONFIG_MAC80211_RC_PID is not set 
        CONFIG_MAC80211_RC_MINSTREL is not set
    2. make menuconfig
        .config - Backports from "Linux" "v4.2.6-0-g1c02865" (backports "v4.2.6-1-0-g90
        ──────────────────────────────────────────────────────────────────────────────
          Backports from "Linux" "v4.2.6-0-g1c02865" (backports "v4.2.6-1-0-g90118c 
         │  Arrow keys navigate the menu.  <Enter> selects submenus --->.          │  
         │  Highlighted letters are hotkeys.  Pressing <Y> includes, <N> excludes, │  
         │  <M> modularizes features.  Press <Esc><Esc> to exit, <?> for Help, </> │  
         │  for Search.  Legend: [*] built-in  [ ] excluded  <M> module  < >       │  
         │ ┌────^(-)─────────────────────────────────────────────────────────────┐ │  
         │ │    [*]   cfg80211 wireless extensions compatibility                 │ │  
         │ │    <M> Generic IEEE 802.11 Networking Stack (mac80211)              │ │  
         │ │    [*] Minstrel                                                     │ │  
         │ │    [*]   Minstrel 802.11n support                                   │ │  
         │ │    [ ]     Minstrel 802.11ac support                                │ │  
         │ │        Default rate control algorithm (Minstrel)  --->              │ │  
         │ │    [*] Enable mac80211 mesh networking (pre-802.11s) support        │ │  
         │ │    [ ] Enable LED triggers                                          │ │  
         │ │    [*] Export mac80211 internals in DebugFS                         │ │  
         │ └────v(+)─────────────────────────────────────────────────────────────┘ │  
         ├─────────────────────────────────────────────────────────────────────────┤  
         │        <Select>    < Exit >    < Help >    < Save >    < Load >         │  
         └─────────────────────────────────────────────────────────────────────────┘