Migrate 25 crates to monorepo. am: 5272514ea4

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/spki/+/3248298

Change-Id: I43d2854bf4b5cbd600a6c9e75d62140589ee7d96
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>