[Backport][tsan] increase app mappings for aarch64 48-bit · Pull Request !817 · OpenHarmony/third_party_llvm-project

1. [Backport][tsan] increase app mappings for aarch64 48-bit
---
### Issue

[Backport][tsan] increase app mappings for aarch64 48-bit
https://gitee.com/openharmony/third_party_llvm-project/issues/ICE7QO
### Reason (Purpose, Solved Problem)

### Description

Reference: https://reviews.llvm.org/D140923

Currently, tsan's memory mappings include 4GB
for high app, 20GB for mid app, and 8GB for low
app. The high app and mid app mappings are
too small for large programs, especially if ASLR
entropy (mmap_rnd_bits) is set higher. The low app
region (for non-PIE) is too small for some of tcmalloc's
internal tests (this does not affect normal apps,
since tsan will replace malloc).

This CL increases the memory mappings to 4TB for
high app, 1.3TB for mid app, and 10TB for low app. Note
that tsan's 44-bit pointer compression/decompression imposes
a 16TB limit on the combined size of the app mappings, making
this set of mappings more or less maximal.

### Test (Local test)

### Need to cherry-pick to release (eg：monthly_20221018, OpenHarmony-3.2-Beta5 ...) branch？

- [ ] yes，branch list:
- [x] no

why:

###  Compatibility impact assessment, please indicate (Y/N)

类型	指派人员	状态
审查	@Eric 由 CODEOWNERS 文件第 1 行指派为审查者	已完成 (1/1人)
审查	hhj Pavel Kosov MrLop 已审查通过	已完成 (1/1人)
测试	openharmony_ci 已测试通过 public_ARKCIAccount 已测试通过	已完成 (2/2人)

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