ANDROID: GKI: db845c: Update symbols list and ABI on rpmsg_register_device_override

android11-5.4-lts is broken on Dragonboard 845c because of
recently added symbol, rpmsg_register_device_override.

So updated the symbols list by running:
  "BUILD_CONFIG=common/build.config.db845c \
    KMI_SYMBOL_LIST_ADD_ONLY=1 build/build_abi.sh -s"

And the abi_gki_aarch64 ABI by running:
  "BUILD_CONFIG=common/build.config.gki.aarch64 \
    ABI_DEFINITION=abi_gki_aarch64.xml KMI_SYMBOL_LIST_ADD_ONLY=1 \
     build/build_abi.sh --update --print-report"

========================================================
Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

1 Added function:

  [A] 'function int rpmsg_register_device_override(rpmsg_device*, const char*)'
========================================================

Bug: 313495196

Change-Id: I3a3504b6d2061bfce0abe9801e2ecb210c337b9f
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
Signed-off-by: Isaac J. Manjarres <isaacmanjarres@google.com>