Update to 3.16-rc2.
    
    - Config changes:
      - Generic config options:
        * RANDOMIZE_BASE=n (default n)
          - With only 9 bits of entropy on 64-bit systems, is it worthwhile?
      - System z:
        * DIAG288_WATCHDOG=m
      - New options specific to ARM (I think), all disabled:
        * I2C_RK3X (SoC)