Add default value for lvm_facts when lvm or lvm2 is not installed or … (#75989)

* Add default value for lvm_facts when lvm or lvm2 is not installed or there are no lvm facts

changelogs/fragments/17393-fix_silently_failing_lvm_facts.yaml

@@ -0,0 +1,2 @@
+bugfixes:
+  - setup - Adds a default value to ``lvm_facts`` when lvm or lvm2 is not installed on linux (https://github.com/ansible/ansible/issues/17393)

lib/ansible/module_utils/facts/hardware/linux.py

@@ -818,7 +818,7 @@ class LinuxHardware(Hardware):
     def get_lvm_facts(self):
         """ Get LVM Facts if running as root and lvm utils are available """
 
-        lvm_facts = {}
+        lvm_facts = {'lvm': 'N/A'}
 
         if os.getuid() == 0 and self.module.get_bin_path('vgs'):
             lvm_util_options = '--noheadings --nosuffix --units g --separator ,'