Change integrity test with FIO to use multicore configuration. Change-Id: I0527d9e7832c1a686b9b4fb20cb317ed17acb051 Signed-off-by: Vitaliy Mysak <vitaliy.mysak@intel.com> Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/445098 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>