updated role variable names

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 2de72ae..f4ce8e0 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -8,8 +8,8 @@
   ec2:
     state: absent
     instance_ids: '{{ ansible_ec2_instance_id }}'
-    aws_access_key: '{{ aws_access_key_id }}'
-    aws_secret_key: '{{ aws_secret_access_key }}'
+    aws_access_key: '{{ aws_access_key }}'
+    aws_secret_key: '{{ aws_secret_key }}'
     aws_region: '{{ aws_region }}'
 
 - name: Terminate AMI instances status report