[lldb] Improve identification of Linux core dumps. Fix for bug #30485.

Summary:
ObjectFileELF::RefineModuleDetailsFromNote() identifies Linux core dumps by searching for
 library paths starting with /lib/x86_64-linux-gnu or /lib/i386-linux-gnu. This change widens the
test to allow for linux installations which have addition directories in the path.

Reviewers: ted, hhellyer, clayborg

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D25179

llvm-svn: 284114