cmd/dist: mark openbsd-mips64 and openbsd-ppc64 broken

The former was broken deliberately; see #58110. The latter is just an
in-progress port.

Updates #58110, #56001.

Change-Id: I7f1c5e2ac016fb7c65c081174d19239fc9b1ea32
Reviewed-on: https://go-review.googlesource.com/c/go/+/482115
Auto-Submit: Heschi Kreinick <[email protected]>
TryBot-Bypass: Heschi Kreinick <[email protected]>
Run-TryBot: Heschi Kreinick <[email protected]>
Reviewed-by: Ian Lance Taylor <[email protected]>

Author: heschi

src/cmd/dist/build.go

@@ -1730,8 +1730,10 @@ var cgoEnabled = map[string]bool{
 // get filtered out of cgoEnabled for 'dist list'.
 // See go.dev/issue/56679.
 var broken = map[string]bool{
-	"linux/sparc64": true, // An incomplete port. See CL 132155.
-	"wasip1/wasm":   true, // An incomplete port. See CL 479627.
+	"linux/sparc64":  true, // An incomplete port. See CL 132155.
+	"wasip1/wasm":    true, // An incomplete port. See CL 479627.
+	"openbsd/ppc64":  true, // An incomplete port: go.dev/issue/56001.
+	"openbsd/mips64": true, // Broken: go.dev/issue/58110.
 }
 
 // List of platforms which are first class ports. See go.dev/issue/38874.