Summary: Fix the matching of format string parameter types to the actual argument types for the PPC64 and CPP-Interpreter files in the same way as 8037816 already did it for all the other files
Reviewed-by: stefank, coleenp, dholmes

Reviewed-by: vlivanov, ehelin

Summary: With this change the HotSpot core build works on Linux/PPC64. The VM succesfully executes simple test programs.
Reviewed-by: kvn

Summary: refactored code to allow platform-specific differences
Reviewed-by: dlong, twisti
Contributed-by: NGoetz Lindenmaier <goetz.lindenmaier@sap.com>