package/nfs-utils: fix unit dependencies without systemd on build host

nfs-utils configure script uses "systemd-escape" to determine the
rpc_pipefs mount point unit name in the non-default case.

If the host build system has no systemd this will silently result in an
empty name, causing rpc_pipefs.target to incorrectly depend on ".mount".

Fix that by depending on host-systemd for build.

Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Acked-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
(cherry picked from commit 4c9b13b8dd993050ba0f026bf4e402f816a3f6df)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nfs-utils/nfs-utils.mk

@@ -79,7 +79,7 @@ NFS_UTILS_POST_INSTALL_TARGET_HOOKS += NFS_UTILS_INSTALL_FIXUP
 
 ifeq ($(BR2_INIT_SYSTEMD),y)
 NFS_UTILS_CONF_OPTS += --with-systemd=/usr/lib/systemd/system
-NFS_UTILS_DEPENDENCIES += systemd
+NFS_UTILS_DEPENDENCIES += systemd host-systemd
 else
 NFS_UTILS_CONF_OPTS += --without-systemd
 endif