Upgrade sec1 to 0.7.3 am: 3b65df0b6f am: 9a875ec6d9

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/sec1/+/2877561

Change-Id: I57ef9387953abef572ed0c1255eea6bb5bf1cd1b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>