Enable .debug_frame support on all platforms.

Since dex2oat will be producing .debug_frame by default,
make sure we support it in libunwind.

(cherry picked from commit b5ae16cf71b577df7462e499b6c6ce2729fc50a3)

Bug: 21924613
Change-Id: I06dcbc9258939c1b152aba285d346ffbb2a14fed
2 files changed