Update NDK prebuilts to build 4754759.

Taken from branch aosp-master.
Also update ChangeLog.

Bug: none.
Test: run test.py.

Change-Id: Iff6df096a0c4535bbcf9c917ae73d507ac61e009
(cherry picked from commit 311a9d2cd27841498fc90a0b26a755deb47e7ebd)
20 files changed