Merge "idegen: traversing all vendor-specific excludes" am: c65b20e6b6 am: 2f10578152 am: 61d873d3c8 am: 10e9b73f51

Original change: https://android-review.googlesource.com/c/platform/development/+/1264719

Change-Id: I9dac36bb0856d9501cf3e211d728ed27673b4dc2