Log stack even if tombstone cannot be created.

Bug: 14498701

(cherry picked from commit c5bb49a138a78442e7326dfb6bbf85feadf0d486)

Conflicts:
	debuggerd/tombstone.cpp

Change-Id: I888b3d683c3b880357b0b24f9204a9cca3e8f3be
1 file changed