cmd/link: require cgo internal linking in TestIssue33979

This was a typo regression in CL 643897, which accidentally dropped the
requirement for cgo internal linking. As a result, this test is
continuously failing on windows-arm64.

For #71395.

Cq-Include-Trybots: luci.golang.try:gotip-windows-arm64
Change-Id: I6a6a636c25fd399cda6649ef94655aa112f10f63
Reviewed-on: https://go-review.googlesource.com/c/go/+/675015
Auto-Submit: Michael Pratt <[email protected]>
Reviewed-by: Michael Knyszek <[email protected]>
Reviewed-by: Quim Muntal <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>

Author: prattmic

src/cmd/link/link_test.go

@@ -195,7 +195,7 @@ func TestIssue33979(t *testing.T) {
 	testenv.MustHaveCGO(t)
 	// N.B. go build below explictly doesn't pass through
 	// -asan/-msan/-race, so we don't care about those.
-	testenv.MustInternalLink(t, testenv.NoSpecialBuildTypes)
+	testenv.MustInternalLink(t, testenv.SpecialBuildTypes{Cgo: true})
 
 	t.Parallel()