P9 CFAM register override procedure

This new procedure will allow users to
provide P9 CFAM register overrides
before the P9 SBE is started.

Change-Id: If3658f9a6ede9a3682c4ed7888e9acb328c67709
Signed-off-by: Michael Tritz <mtritz@us.ibm.com>
diff --git a/targeting.hpp b/targeting.hpp
index 9719a65..8ab8eda 100644
--- a/targeting.hpp
+++ b/targeting.hpp
@@ -127,6 +127,11 @@
             return targets.size();
         }
 
+        /**
+         * Returns a target by position.
+         */
+        std::unique_ptr<Target>& getTarget(size_t pos);
+
     private:
 
         /**