trusty: Support directories as inputs to replace_ramdisk_modules.py am: f928cbdc33 am: def5a44ceb

Original change: https://android-review.googlesource.com/c/trusty/host/common/+/3256326

Change-Id: I96782c211e05d9ce9639f3be3cc3a83f6c01f570
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>