ANDROID: GKI: rockchip: Enable symbols for adc-keys

Leaf changes summary: 2 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 2 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

2 Added functions:

  [A] 'function void input_set_poll_interval(input_dev*, unsigned int)'
  [A] 'function int input_setup_polling(input_dev*, void (input_dev*)*)'

Bug: 194515348
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0e5c2b10ded49faa890aa37d157e7ddf6797e432