[scudo] [GWP-ASan] Add GWP-ASan variant of scudo benchmarks. am: 6583baa3f2

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1705746

Change-Id: Ie1c04cb59d4f0201e1a4a9deb23b86f8a892fdfb