These particular testcases request huge buffers from malloc() .This is
intentional and the test expects malloc() to return NULL. Address
sanitizer catches this and considers it a problem.
Could also be skipped in runtime by setting the environment variable:
ASAN_OPTIONS=allocator_may_return_null=1
Task-number: QTBUG-89400
Change-Id: Id3a9b586be9c0bad4a007e1731f2bc1a879cc76e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>