terraform: Add a Kconfig menu item to set the IaaC tool path

Users need to be able to override the Infrastructure as Code tool
binary path when it's installed in non-default locations. The
hidden TERRAFORM_BINARY_PATH option made this difficult because
it wasn't visible in the configuration interface and used
hard-coded paths that don't match typical package manager
installations.

This change promotes the option to a visible menu item with
improved defaults that match common installation paths. The
Terraform default now uses /usr/bin/terraform instead of
/usr/local/bin/terraform, aligning with standard package
manager behavior. The new help text guides users on when and
how to override the path for custom installations.

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

Author: chucklever

terraform/Kconfig

@@ -62,9 +62,14 @@ config TERRAFORM_USE_OPENTOFU
 endchoice
 
 config TERRAFORM_BINARY_PATH
-	string
-	default "/usr/local/bin/terraform" if TERRAFORM_USE_TERRAFORM
+	string "Path to Terraform or OpenTofu binary"
+	default "/usr/bin/terraform" if TERRAFORM_USE_TERRAFORM
 	default "/usr/local/bin/tofu" if TERRAFORM_USE_OPENTOFU
 	output yaml
+	help
+	  Specify the path to the Terraform or OpenTofu binary. The default
+	  is set based on your Infrastructure as Code tool choice above.
+	  Override this if your binary is installed in a different location,
+	  such as /usr/bin/terraform or /usr/bin/tofu.
 
 endif # TERRAFORM