tree 6c92d16841a58b6ec7251256e0f2d64b0837b230
parent 014d1fc9692aee8eecb95379452cc1dbe846c44b
author Tao Bao <tbao@google.com> 1527617882 -0700
committer Tao Bao <tbao@google.com> 1527633248 -0700

Expose PLATFORM_SECURITY_PATCH_TIMESTAMP.

We have use case that uses the timestamp for PLATFORM_SECURITY_PATCH in
device specific Makefile, but need to handle the platform-dependent
`date` command. This CL computes and exposes
PLATFORM_SECURITY_PATCH_TIMESTAMP from the core build system.

Bug: 80311893
Test: Use PLATFORM_SECURITY_PATCH_TIMESTAMP in device-specific folder,
      on both of Linux and macOS. Check the value.
Change-Id: I27a88dcebde7a1c204491f5f5c45c5160398dbb6
Merged-In: I27a88dcebde7a1c204491f5f5c45c5160398dbb6
(cherry picked from commit 717d9d3ae2d2e8d000dad0eb0454658678b79f2f)