[foreign-memaccess+abi] RFR: Fix build problem on linux-x86

[Per Minborg]

This PR presumably fixes a GH action build that fails under linux-x86.

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Commit messages:
 - Bump copyright year
 - Fix build problem on linux-x86

Changes: https://git.openjdk.org/panama-foreign/pull/768/files
 Webrev: https://webrevs.openjdk.org/?repo=panama-foreign&pr=768&range=00
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/panama-foreign/pull/768.diff
  Fetch: git fetch https://git.openjdk.org/panama-foreign pull/768/head:pull/768

PR: https://git.openjdk.org/panama-foreign/pull/768