runtime: push vdsoClockgettimeSym linkname on linux/arm64

Updates #67401.

Change-Id: I491ad443673193db4f921346539ca5e41afad2ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/586896
Auto-Submit: Austin Clements <[email protected]>
Reviewed-by: Than McIntosh <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Florian Zenker <[email protected]>

Author: aclements

src/runtime/badlinkname_linux_amd64.go renamed to src/runtime/badlinkname_linux.go

@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build amd64 || arm64
+
 package runtime
 
 import _ "unsafe"