[scudo][standalone] Change default Android config

Summary:
This changes a couple of parameters in the default Android config to
address some performance and memory footprint issues (well to be closer
to the default Bionic allocator numbers).

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D73750

GitOrigin-RevId: 64cb77b9469207799e570483dadc720dbf12c794
3 files changed