Android NDK r20b (build 5948944)
Update NDK prebuilts to build 5183073.

Taken from branch aosp-master.

Omit mac host update this time because nothing needs to update
on mac host and the mac build server is down.

Bug: none
Test: run test.py on linux/mac/windows on Android N/O/P.

Change-Id: I9c36ca9d45160a9207cedbeacc3442157aaec802
23 files changed