Add API dump for the current version

created by invoking 'm <module_name>-update-api'

Exempt-From-Owner-Approval: cherry-pick from AOSP

Bug: 147433177
Test: m
Merged-In: I591200ed6ee89a398ad5e85258aaf1201703b14d
(cherry picked from commit b4431687)
Change-Id: I591200ed6ee89a398ad5e85258aaf1201703b14d