terraform/Azure: Use "output yaml" for the EBS volume type setting

Remove the line in terraform.Makefile that sets
"terraform_ebs_volume_type" and just pass it directly from Kconfig
via an "output yaml" directive.

Signed-off-by: Chuck Lever <[email protected]>

Author: chucklever

scripts/terraform.Makefile

@@ -51,7 +51,6 @@ ifeq (y,$(CONFIG_TERRAFORM_AWS))
 ifeq (y,$(CONFIG_TERRAFORM_AWS_ENABLE_EBS_VOLUMES))
 TERRAFORM_EXTRA_VARS += terraform_aws_enable_ebs='True'
 TERRAFORM_EXTRA_VARS += terraform_aws_ebs_volume_size=$(subst ",,$(CONFIG_TERRAFORM_TERRAFORM_AWS_EBS_VOLUME_SIZE))
-TERRAFORM_EXTRA_VARS += terraform_aws_ebs_volume_type=$(subst ",,$(CONFIG_TERRAFORM_AWS_EBS_VOLUME_TYPE))
 ifeq (y,$(CONFIG_TERRAFORM_AWS_EBS_VOLUME_NEEDS_IOPS))
 TERRAFORM_EXTRA_VARS += terraform_aws_ebs_volume_needs_iops=true
 TERRAFORM_EXTRA_VARS += terraform_aws_ebs_volume_iops=$(subst ",,$(CONFIG_TERRAFORM_AWS_EBS_VOLUME_IOPS))

terraform/aws/kconfigs/Kconfig.storage

@@ -90,6 +90,7 @@ endchoice
 
 config TERRAFORM_AWS_EBS_VOLUME_TYPE
 	string
+	output yaml
 	default "gp2" if TERRAFORM_AWS_EBS_VOLUME_TYPE_GP2
 	default "gp3" if TERRAFORM_AWS_EBS_VOLUME_TYPE_GP3
 	default "io1" if TERRAFORM_AWS_EBS_VOLUME_TYPE_IO1