First pass at native tests failing on MTS runs

libflatbuffers-cpp can't be found on DUT so we have to
statically import it.

Bug: 265213364
Bug: 232577476
Tag: #feature
Test: net_test_stack_acl
Change-Id: Ied179a903ae209bd3adc061ce673dfb4a9c49bff
(cherry picked from commit 5cc7d07d)
Merged-In: Ied179a903ae209bd3adc061ce673dfb4a9c49bff