docker: add extra libs to s390x target to extend codebase coverage

Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>

tests/docker/dockerfiles/debian-s390x-cross.docker

@@ -20,3 +20,13 @@ RUN apt install -yy gcc-multilib-s390x-linux-gnu binutils-multiarch
 
 # Specify the cross prefix for this image (see tests/docker/common.rc)
 ENV QEMU_CONFIGURE_OPTS --cross-prefix=s390x-linux-gnu-
+
+RUN DEBIAN_FRONTEND=noninteractive \
+    apt-get install -y --no-install-recommends \
+        glusterfs-common:s390x \
+        libbz2-dev:s390x \
+        liblzo2-dev:s390x \
+        libncursesw5-dev:s390x \
+        libnfs-dev:s390x \
+        librdmacm-dev:s390x \
+        libsnappy-dev:s390x