Update sampleec2.tf

sampleec2.tf

@@ -44,14 +44,14 @@ variable "security_group_name" {
   default     = "security_group"
 }
 
-variable "role_name" {
+variable "role_ec2" {
   description = "Value of the Name tag for the IAM role"
   type        = string
   default     = "role_name"
   sensitive = true
 }
 
-variable "policy_name" {
+variable "policy_ec2" {
   description = "Value of the Name tag for the EC2 instance"
   type        = string
   default     = "policy_name"