port-evbmips/60302: evbarm-aarch64 checksum is of the wrong files

["coypu%sdf.org@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60302
>Category:       port-evbmips
>Synopsis:       evbarm-aarch64 checksum is of the wrong files
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-evbmips-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat May 30 15:30:00 +0000 2026
>Originator:     coypu
>Release:        NetBSD 11.0 RC4
>Organization:
>Environment:
Not yet installed.
>Description:
I downloaded https://cdn.netbsd.org/pub/NetBSD/NetBSD-11.0_RC4/evbarm-aarch64/binary/gzimg/arm64.img.gz and wanted to confirm the checksum, so I looked at the SHA512 file:
https://cdn.netbsd.org/pub/NetBSD/NetBSD-11.0_RC4/evbarm-aarch64/binary/gzimg/SHA512

The contents of it is:

SHA512 (arm64mbr.img) = 3dbc8bf14e3b560a51cc77436fe4a7f90e9492aef8e0bf8937246fe8c78641a7c3e4a21c69dff7a6aaef14c6e3ebf0f4725b1279fb6ce7b9fb498df49a776bef

So:
1. The file I downloaded is missing from SHA512
2. The checksum is for the non-gz file?
>How-To-Repeat:

>Fix: