In this diff the elf-specific tests are moved into the subfolder llvm-objcopy/ELF
(the change was discussed in the comments on https://reviews.llvm.org/D54674).
A separate code reivew wasn't sent for this change
since Phabricator is failing to create such a large diff.
Test plan:
make check-all
make check-llvm-tools
make check-llvm-tools-llvm-objcopy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@347958 91177308-0d34-0410-b5e6-96231b3b80d8
