[ios] Make zlib_unittests pass on iOS.

Change OS_MAC to OS_APPLE to define same behavior for iOS as Mac.
Add globlist, filelist so we can bundle the test data up into
a PAK file to run.

Bug: 1429689
Change-Id: Ib401cda45edab951a8e9483056685734a03edff0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4389623


Reviewed-by: Adenilson Cavalcanti <cavalcantii@chromium.org>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1125638}
NOKEYCHECK=True
GitOrigin-RevId: d618ef5baebe9f8e93142dfe9557ca72eb2b6066