add build_abi.sh to create ABI dumps from build.sh builds

Add build_abi.sh as a wrapper script to build with build.sh and create
an ABI dump using abi/dump_abi.

Bug: 111449103
Change-Id: Iea773cf2ed6f3fdc577a99f42284992e0a871d25
Signed-off-by: Matthias Maennich <maennich@google.com>
2 files changed