Imported Scudo Standalone changes:

  - 7a555958f111094df4336209fd05522d07c483b0 [scudo] Initialize the allocator in setTrackAllocationSta... by Evgenii Stepanov <eugenis@google.com>
  - 45b7d44ecb01780e26dc8d3c30bc34e32c08dd70 [scudo] Zero- and pattern-initialization of memory. by Evgenii Stepanov <eugenis@google.com>

Bug: 155227507
GitOrigin-RevId: 45b7d44ecb01780e26dc8d3c30bc34e32c08dd70
Change-Id: I0e1da3d47d9b1b5787f3fcb2dea21e647142be1d
6 files changed