abi/bootstrap: update libabigail to current master

Until a release (1.7) has been published upstream, we need to build and
use a trunk version of libabigail as we make use of recent
functionality only available in master.

Hence, pin down the libabigail version to a sufficient master commit [1].

[1] https://sourceware.org/git/?p=libabigail.git;a=commit;h=fb70149cb1bacb62209180d5ee59ba7022c7ec85

Change-Id: I6f0527d2d85e5c85690d2f83fa9379ae65ee9ab2
Signed-off-by: Matthias Maennich <maennich@google.com>
1 file changed