Android 11.0.0 Release 21 (RQ1A.201205.008.A1)
Upgrade to v0.18

Bug: 148763437
Test: make libiio
Change-Id: I9810cec91e823a300a5a9da5e0a6b11053a0e420
(cherry picked from commit 79a1a11db0c1ab0ae311ce69c8762b6b285cd5bf)
37 files changed