ANDROID: Update abi_gki_aarch64_unisoc_whitelist

Now that CONFIG_DEBUG_PREEMPT is =n, some symbols are no longer
exported in the kernel. Remove them from the Unisoc whitelist.

Bug: 149980028
Bug: 147075469
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Ida3c018eee16a2404fd5f37a417457ccf81a45d2