tree c6ebb957ca2f584f7fc5d266ea14f26a2bb52552
parent 26605f4b2093018dc4002eaff0e77b283860a16b
author Yifan Hong <elsk@google.com> 1535061716 -0700
committer Yifan Hong <elsk@google.com> 1538087952 -0700

update_engine: allow to r/w super partition metadata

and (un)map on dev mapper.

Test: resize partitions during OTA
Bug: 110717529

Change-Id: Ia0b66a188232795cf7c649b48af985a583f3471d