Linux/ppc64: Remove assumption on contents of r11 in closure
Fix call floating point va function

I'm not sure floating-point arguments in GPR or FPR before calling
variable number arguments function. so, load all arguments to GPR and
FPR.
Merge pull request #68 from zeldin/master

Linux/ppc64: Remove assumption on contents of r11 in closure
Merge pull request #72 from heiher/devel

MIPS N32: Fix call floating point va function