[release-branch.go1.17] runtime: call testenv.MustHaveCGO in a couple of tests
For #51695
Fixes #51696
Change-Id: Icfe9d26ecc28a7db9040d50d4661cf9e8245471e
Reviewed-on: https://go-review.googlesource.com/c/go/+/392916
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
(cherry picked from commit
2d32594396b231b39d09ec21d34b22b0270268b5)
Reviewed-on: https://go-review.googlesource.com/c/go/+/393698
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>