Add explicit API to append parameter path to error log

BZ: 183857

Explicit API names makes the code easier to read, allowing even
to remove some comments.
This patch adds an API to append the parameter path to the error log.

Change-Id: Id136497072e53c8dd0ea3d95354e1dfe6193f771
Signed-off-by: Francois Gaffie <francois.gaffie@intel.com>
Signed-off-by: Mattijs Korpershoek <mattijsx.korpershoek@intel.com>