Change single host for update oem after deinstall

Author: ranbeersingh1

playbooks/oracle_release_update/deinstall_oracle.yml

@@ -8,7 +8,7 @@
 
 # Run the following to Update OEM Targets
 # This playbook runs ONLY on a single target host because emcli is installed
-- hosts: "{{ groups[target_hosts][0] }}"
+- hosts: "{{ hostvars.localhost.deinstalled_targets[0] }}"
   gather_facts: no
   become: yes
   become_user: oracle