git: openjdk/mobile: 8242107: Shenandoah: Fix aarch64 build after JDK-8242082

[duke]

Changeset: ff34c4cd
Author:    Roman Kennke <rkennke at openjdk.org>
Date:      2020-04-03 19:33:06 +0000
URL:       https://git.openjdk.java.net/mobile/commit/ff34c4cd

8242107: Shenandoah: Fix aarch64 build after JDK-8242082

Reviewed-by: shade

! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp