manually create the xfs mount point otherwise groot will fail to unmount it
manually create the xfs mount point otherwise groot will fail to unmount it

we ran into this issue in the AfterSuite where grootfs failed to delete the
store since another process is using it

see https://diego.ci.cf-app.com/teams/main/pipelines/main/jobs/inigo-mysql/builds/922

Signed-off-by: John Shahid <d5f6a919b5b5e6a4f7f09f1adf45e90e5c38b58e@gmail.com>

cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release