let some modules to respect $mount_needs

Cc: Harald Hoyer <harald@redhat.com>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>

modules.d/95iscsi/module-setup.sh

@@ -23,7 +23,7 @@ check() {
         [[ -d iscsi_session ]]
     )
 
-    [[ $hostonly ]] && {
+    [[ $hostonly ]] || [[ $mount_needs ]] && {
         _rootdev=$(find_root_block_device)
         if [[ $_rootdev ]]; then
             # root lives on a block device, so we can be more precise about

modules.d/95nbd/module-setup.sh

@@ -9,7 +9,7 @@ check() {
 
     # if an nbd device is not somewhere in the chain of devices root is
     # mounted on, fail the hostonly check.
-    [[ $hostonly ]] && {
+    [[ $hostonly ]] || [[ $mount_needs ]] && {
         is_nbd() { [[ -b /dev/block/$1 && $1 == 43:* ]] ;}
         . $dracutfunctions
 

modules.d/95ssh-client/module-setup.sh

@@ -8,6 +8,7 @@ check() {
     # If our prerequisites are not met, fail.
     type -P ssh >/dev/null || return 1
     type -P scp >/dev/null || return 1
+    [[ $mount_needs ]] && return 1
     if [[ $sshkey ]]; then
         [ ! -f $sshkey ] && {
             derror "sshkey is not found!"