Because layout in corefx binary has been changed recently, it causes arm CI failure.

This is a part of #9445 which contains huge change in arm CI.

BTW #9445 can not be merged yet, since discussion for new arm CI is not done at dotnet/core-setup#790

@jkotas PTAL. I hope this can fix another failure in arm32 CI. Sorry to bother, but I can't test it locally since netci.groovy can not be tested unless it is mereged.
I hope this can fix current problem. And it can be resolved completely with new arm32 CI #9445.

@hqueue Thank you for working through this!

@jkotas No problem :)
BTW does it take some time before netci.groovy is applied ? Because I found that CI still use old netci.groovy, and arm CI is still failing with old command.

The updated netci.groovy is only picked up by new PRs. The usual trick is to close the PR and immediately reopen it - it will cause a new netci.groovy to be picked up.

I have done it in #9788. Unfortunately, it looks like it is still failing later. From https://ci.dot.net/job/dotnet_coreclr/job/master/job/arm_emulator_cross_debug_ubuntu_prtest/3312/console

11:29:10 ERROR: There are some uncommited changes. To avoid losing these changes commit them and try again.
11:29:10 
11:29:10 HEAD detached at fbc7e97
11:29:10 Untracked files:
11:29:10   (use "git add <file>..." to include

@jkotas I found that CI still used 00:01:31.455 + tar -xf ./bin/build.tar.gz command wihtou -C option for the failure. I will trigger arm CI agin for the #9788.

@jkotas I think arm32 CI works now. arm32 CI for #9788 have been completed :)
If you don't mind, can you rerun CI for other PRs too ?

@jkotas I've re-triggered failed arm32 CI for other PRs. Thank you for merging quick fixes :)