main/nsd: enable ratelimit configure option

enable ratelimit configure option but set it to off by default
and it can be enabled by admin if needed
9 jobs for !5030 with 3.11-stable-nsd-enable-ratelimit in 3 minutes and 15 seconds
detached
Status Job ID Name Coverage
  Lint
passed #61642
docker-alpine x86_64
lint

00:00:47

 
  Build
passed #61647
docker-alpine ci-build aarch64
build-aarch64

00:00:51

passed #61648
docker-alpine ci-build armv7
build-armv7

00:01:01

passed #61646
docker-alpine ci-build ppc64le
build-ppc64le

00:01:13

passed #61725
docker-alpine ci-build s390x
build-s390x

00:01:13

passed #61644
docker-alpine ci-build x86
build-x86

00:00:49

passed #61643
docker-alpine ci-build x86_64
build-x86_64

00:00:48

failed #61645
docker-alpine ci-build s390x
build-s390x

00:02:44

failed #61649
s390x ci-build docker-alpine
build-s390x

00:02:33