Generate license module from the vendor snapshot update.py

`notice` property is removed from the soong. The update.py script
will generate `license` module, instead.
It will use the information included in the snapshot json files.

Bug: 271539873
Test: generate all kinds of snapshots and build against them
Change-Id: I7bbbf8bcec2a8c6d16ec1e04888dd5adf24ae4c7
1 file changed