[BUGFIX] [v1.8.x] Fix flaky intgemm test in v1.8.x too

[kpuatamazon]

Description

Fix #19197 for the v1.8.x branch. Related pull requests in other branches: #19202 #/19201

Checklist

Essentials

• PR's title starts with a category (e.g. [BUGFIX], [MODEL], [TUTORIAL], [FEATURE], [DOC], etc)
• Changes are complete (i.e. I finished coding on this PR)
• All changes have test coverage
• Code is well-documented

Changes

• Fix flaky test by properly banning 0.5

Comments

Duplicate of #19202

[mxnet-bot]

Hey @kpuatamazon , Thanks for submitting the PR
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[kpuatamazon]

@mxnet-bot run ci [windows-gpu]

[2020-09-21T17:31:37.918Z] mxnetwindows-cpu_h8nhn9jd9l was marked offline: Connection was broken: java.nio.channels.ClosedChannelException
[2020-09-21T17:31:37.918Z] 	at org.jenkinsci.remoting.protocol.NetworkLayer.onRecvClosed(NetworkLayer.java:154)
[2020-09-21T17:31:37.918Z] 	at org.jenkinsci.remoting.protocol.impl.NIONetworkLayer.ready(NIONetworkLayer.java:179)
[2020-09-21T17:31:37.918Z] 	at org.jenkinsci.remoting.protocol.IOHub$OnReady.run(IOHub.java:795)
[2020-09-21T17:31:37.918Z] 	at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
[2020-09-21T17:31:37.918Z] 	at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
[2020-09-21T17:31:37.918Z] 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[2020-09-21T17:31:37.918Z] 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[2020-09-21T17:31:37.918Z] 	at java.base/java.lang.Thread.run(Thread.java:834)
[2020-09-21T17:31:37.918Z] 
Unable to create live FilePath for mxnetwindows-cpu_h8nhn9jd9l

[mxnet-bot]

Jenkins CI successfully triggered : [windows-gpu]