Revert "Remove ehmaldonado@chromium.org from OWNERS"

This reverts commit 4a9ce1b5.

Reason for revert:
Testing secondary account can still approve

Original change's description:
> Remove ehmaldonado@chromium.org from OWNERS
>
> Change-Id: I661f8d23dd7cd716e4746fd4ef20de9416fd6f1c
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2787480
> Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
> Commit-Queue: Gavin Mak <gavinmak@google.com>

Change-Id: Ib54084be936f0f66370600f3b520a13079ae763c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2787596
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>

OWNERS

@@ -2,6 +2,7 @@ set noparent
 
 apolito@google.com
 dpranke@google.com
+ehmaldonado@chromium.org
 ehmaldonado@google.com
 jochen@chromium.org
 gavinmak@google.com