ANDROID: abi_gki_aarch64_qcom: whitelist mm symbols

Whitelist the below symbols:
lru_gen_caps
unpack_shadow

Compiler o/p:
INFO: 1 function symbol(s) added
  'void unpack_shadow(void*, int*, pg_data_t**, unsigned long*, bool*)'

1 variable symbol(s) added
  'struct static_key_true lru_gen_caps[3]'

Bug: 369964379
Change-Id: I419c6273bfe2e4ce533e2c344d347683059822d5
Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com>