Bug#940911: Face this issue with Debian bullseye install on external disk

[Aditya]

Hi,

Trying to boot Debian Bullseye installed in an external drive, I face 
the same. This is on a laptop with AMD Zen 2 CPU. Unable to boot due to 
this issue.

As a workaround, I add the rmmod tpm line as suggested in Ubuntu bug 
report posted by Hervé in #17 comment.

I believe this should be added as a release critical bug for Bullseye: 
https://bugs.debian.org/release-critical/other/testing.html

Thanks