[foreign-memaccess+abi] RFR: Fix imports

[Maurizio Cimadamore]

On Mon, 19 Sep 2022 12:04:55 GMT, Per Minborg <duke at openjdk.org> wrote:

> This PR fixes some imports and is related to https://bugs.openjdk.org/browse/JDK-8293510
> 
> Two other minor fixes are also included.

Looks good

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Marked as reviewed by mcimadamore (Committer).

PR: https://git.openjdk.org/panama-foreign/pull/723