This commit will ppc extension to the Alex Williamson vfio
testing programs

     powerpc specific implementation to register memory
before mapping to pci device. and creating second window
for huge memory mapping to io devices.

…cy mode the

Alex Williamson vfio test code modified.

This patch adds vfio-spapr-eeh-test.c test case to
test EEH process form VFIO userspace. It dumps the
pci config space and few 32 bit MMIO registers
before and after injectiong error. It uses VFIO_EEH_PE_RESET_HOT
to recover from EEH state and enables the device by
calling VFIO_EEH_PE_CONFIGURE.