Fix image datasource test to avoid checking for specific launch options
Fix image datasource test to avoid checking for specific launch options

Depending on the tenancy/region; the order of images returned by this may
be inconsistent. If checking against the first result, then the launch options
may vary across tenancy/regions.

Avoid checking for specific launch options values and only check for values
that are guaranteed by the datasource query.

oracle/terraform-provider-baremetal,oracle/terraform-provider-baremetal