dashboard: add known issue for freebsd-arm-paulzhol

For golang/go#52653.
Updates golang/go#52679.

Change-Id: I585d0d69d60739328b6921470d7fea0d9c038537
Reviewed-on: https://go-review.googlesource.com/c/build/+/408700
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Alex Rakoczy <alex@golang.org>
diff --git a/dashboard/builders.go b/dashboard/builders.go
index 6346f2f..72c6bcd 100644
--- a/dashboard/builders.go
+++ b/dashboard/builders.go
@@ -2689,6 +2689,7 @@
 			"GOARM=7",
 			"CGO_ENABLED=1",
 		},
+		KnownIssues: []int{52679},
 	})
 	addBuilder(BuildConfig{
 		Name:     "freebsd-arm64-dmgk",