gen-dynamic-pci: fix PCI passthrough target guest default value

Fix two issues preventing PCI passthrough configuration from appearing
in generated nodes files:

1. Template generation was producing "None" in YAML files due to
   incorrect include path and missing None handling in the Jinja2
   template. Fixed by correcting the include path and adding a
   replace filter to remove "None" values.

2. PCI passthrough target_guest field was defaulting to empty string,
   preventing devices from being assigned to guests. Fixed by setting
   the Kconfig default to reference KDEVOPS_HOSTS_PREFIX, which
   automatically assigns devices to the configured host prefix (e.g.,
   "debian13").

With these fixes, PCI passthrough configuration now correctly appears
in the generated guestfs/kdevops_nodes.yaml file when devices are
enabled and target_guest is properly configured.

Generated-by: Claude AI
Reviewed-by: Chuck Lever <[email protected]>
Signed-off-by: Luis Chamberlain <[email protected]>

Author: mcgrof

playbooks/python/workflows/dynamic-kconfig/gen-dynamic-pci.py

@@ -95,9 +95,9 @@ def add_pcie_kconfig_name(config_name, sdevice):
 def add_pcie_kconfig_target(config_name, sdevice):
     sys.stdout.write("config %s_TARGET_GUEST\n" % (config_name))
     sys.stdout.write(
-        '\tstring  "Taret guest to offload %s"\n' % (strip_kconfig_name(sdevice))
+        '\tstring  "Target guest to offload %s"\n' % (strip_kconfig_name(sdevice))
     )
-    sys.stdout.write('\tdefault ""\n')
+    sys.stdout.write('\tdefault KDEVOPS_HOSTS_PREFIX\n')
     sys.stdout.write("\tdepends on %s\n" % config_name)
     sys.stdout.write("\tdepends on KDEVOPS_LIBVIRT_PCIE_PASSTHROUGH_TYPE_EACH\n")
     sys.stdout.write("\thelp\n")

playbooks/roles/gen_nodes/templates/guestfs_nodes.j2

@@ -1,3 +1,3 @@
 ---
 guestfs_nodes:
-{% include './templates/hosts.j2' %}
+{% include 'hosts.j2' -%}

playbooks/roles/gen_nodes/templates/hosts.j2

@@ -1,6 +1,6 @@
-{% from "gen_nodes_list.j2" import gen_nodes_list %}
+{% from "gen_nodes_list.j2" import gen_nodes_list -%}
 {{ gen_nodes_list( nodes, kdevops_baseline_and_dev, 100,
 		   pcie_passthrough_enable,
 		   pcie_passthrough_target_type,
 		   pcie_passthrough_target,
-		   pcie_passthrough_devices ) }}
+		   pcie_passthrough_devices ) | replace("None", "") }}