Add VPC Boskos support to deployer.go for s390x

- Support both lowercase and capitalized Boskos field names
- Extract resource-group-name, vpc-name, and subnet-name from Boskos
- Use resource.Name as fallback for VPC name
- Maintains backward compatibility with PowerVS
- Enables single-command approach for VPC like PowerVS

Author: sudharshanibm

kubetest2-tf/deployer/deployer.go

@@ -176,8 +176,22 @@ func (d *deployer) initialize() error {
 				case "vpc":
 					vpc.VPCProvider.Region = d.BoskosResourceUserData["region"]
 					vpc.VPCProvider.Zone = d.BoskosResourceUserData["zone"]
-					vpc.VPCProvider.ResourceGroup = d.BoskosResourceUserData["resource-group"]
-					vpc.VPCProvider.VPCName = d.BoskosResourceUserData["vpc-name"]
+					// Try both lowercase and capitalized field names for compatibility
+					if resourceGroup := d.BoskosResourceUserData["resource-group"]; resourceGroup != "" {
+						vpc.VPCProvider.ResourceGroup = resourceGroup
+					} else if resourceGroup := d.BoskosResourceUserData["resource-group-name"]; resourceGroup != "" {
+						vpc.VPCProvider.ResourceGroup = resourceGroup
+					}
+					// Try both lowercase and capitalized field names for VPC name
+					if vpcName := d.BoskosResourceUserData["vpc-name"]; vpcName != "" {
+						vpc.VPCProvider.VPCName = vpcName
+					} else if vpcName := resource.Name; vpcName != "" {
+						vpc.VPCProvider.VPCName = vpcName
+					}
+					// Get subnet name if available
+					if subnetName := d.BoskosResourceUserData["subnet-name"]; subnetName != "" {
+						vpc.VPCProvider.SubnetName = subnetName
+					}
 
 				case "powervs":
 					powervs.PowerVSProvider.Zone = d.BoskosResourceUserData["zone"]