Revert "[scudo] Use stdint types for internal scudo types" am: f67abf9ac7 am: 52aea46de8 am: 8561e825ca

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1798328

Change-Id: Ic2f40438603dafe7efa44b8ae4fd191bdd0a2ba1