ANDROID: GKI: rockchip: Enable symbols for rk808-regulator

Functions changes summary: 0 Removed, 0 Changed (1546 filtered out), 2 Added functions
Variables changes summary: 0 Removed, 0 Changed (11 filtered out), 0 Added variables

2 Added functions:

  [A] 'function gpio_desc* devm_gpiod_get_index_optional(device*, const char*, unsigned int, gpiod_flags)'
  [A] 'function int gpiod_is_active_low(const gpio_desc*)'

Bug: 194515348
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie06fa99d6616cb389bccc1d9167f084c7cafbe89