ANDROID: abi_gki_aarch64_qcom: Add vma apis

mtree_load and zap_vma_ptes are used to help transfer data through
rpmsg glink to users. Add it to the symbol list.

2 function symbol(s) added
  'void* mtree_load(struct maple_tree*, unsigned long)'
  'void zap_vma_ptes(struct vm_area_struct*, unsigned long, unsigned
long)'

Bug: 272816594
Change-Id: I674372e3d58f44074da242412e35767465ebb511
Signed-off-by: Chris Lew <quic_clew@quicinc.com>