hal: support zone control for ecns-hfp calls

* Add hfp_zone set and get parameter control for new
  Fluence V9 automotive module and topology.
* Zones 0 through 6 are applicable.
* Provide the capability to configure zone config
  params from platform info xml.
* Fix KW warning.

Change-Id: I40ebc06c1919a4c208cc5f11bf2cd3d6df7c4f04
Signed-off-by: Guodong Hu <guodhu@codeaurora.org>