Use distro.id() instead of distro.name() (#52199)

* Update sys_info unit tests

* Correct distribution values in hostname.py

* Normalize Rhel to Redhat

lib/ansible/module_utils/common/sys_info.py

@@ -29,12 +29,12 @@ def get_distribution():
     distribution = None
 
     if platform.system() == 'Linux':
-        distribution = distro.name().capitalize()
+        distribution = distro.id().capitalize()
 
-        # FIXME: Would we need to normalize these if we used: id() instead of name()?
-        distribution_words = distribution.split()
-        if 'Amazon' in distribution_words:
+        if distribution == 'Amzn':
             distribution = 'Amazon'
+        elif distribution == 'Rhel':
+            distribution = 'Redhat'
         elif not distribution:
             distribution = 'OtherLinux'