Make getrandom available to product and vendor am: 175407161c am: baaf9a5f6a am: 056610f806 am: 9949c6358d am: bc8c811019

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/getrandom/+/2475771

Change-Id: I77c30ed7587ddbd5611aca56df8283a3cea88155
Signed-off-by: Automerger Merge Worker <[email protected]>