scripts: add zfcp module to s390x images

Requires :
https://gitlab.alpinelinux.org/tmhoang/mkinitfs/-/merge_requests/1
7 jobs for !11648 with zfcp in 2 minutes and 6 seconds (queued for 1 second)
latest detached
Status Job ID Name Coverage
  Lint
passed #190813
x86_64 docker-alpine
lint

00:00:26

 
  Build
passed #190818
aarch64 ci-build docker-alpine
build-aarch64

00:00:32

passed #190819
armv7 ci-build docker-alpine
build-armv7

00:01:03

passed #190817
ppc64le ci-build docker-alpine
build-ppc64le

00:00:51

passed #190816
s390x ci-build docker-alpine
build-s390x

00:00:26

passed #190815
x86 ci-build docker-alpine
build-x86

00:00:26

passed #190814
x86_64 ci-build docker-alpine
build-x86_64

00:00:28