RFR: 8255305: Add Linux x86_32 tier1 to submit workflow [v2]

[Aleksey Shipilev]

On Tue, 27 Oct 2020 10:49:12 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> Aleksey Shipilev has updated the pull request incrementally with four additional commits since the last revision:
>> 
>>  - Rename "x32" -> "x86" in the test steps
>>  - Merge branch 'JDK-8255412-add-x32-default' into JDK-8255305-32bit-tier1
>>  - Rename x32 -> x86.
>>  - 8255412: Add "Linux x32" to platform selection default in custom submit workflow
>
> Looks good to me now. Thank you!

Testing is still clean apart for missing #833 change. Okay to push then?

-------------

PR: https://git.openjdk.java.net/jdk/pull/830