ANDROID: Update kabi for db845c (following moving pinctrl to a module)

Updated via the following method:
 $ ./build/abi/bootstrap
 <follow instructions for adding needed path variables>
 $ BUILD_CONFIG=common/build.config.db845c build/build.sh
 $ ./build/abi/extract_symbols out/android-5.4-stable/ --whitelist common/abi_gki_aarch64_db845c_whitelist
 $ BUILD_CONFIG=common/build.config.gki.aarch64 build/build_abi.sh --update --print-report

 The detailed report is available in the same directory.
 ABI DIFFERENCES HAVE BEEN DETECTED! (RC=8)
========================================================
Leaf changes summary: 5 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 4 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 1 Added variable

4 Added functions:

  [A] 'function int device_property_read_u16_array(device*, const char*, u16*, size_t)'
  [A] 'function bool gpiochip_line_is_valid(const gpio_chip*, unsigned int)'
  [A] 'function void gpiochip_set_chained_irqchip(gpio_chip*, irq_chip*, unsigned int, irq_flow_handler_t)'
  [A] 'function int pinctrl_force_default(pinctrl_dev*)'

1 Added variable:

  [A] 'unsigned long int usb_hcds_loaded'

========================================================

Bug: 158125476
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I1c0d767d136c931b5836982cc3da4fb7fc43fb60