PPC32 support

fsl_local_config_read — Generate a MPC85xx local config space read
fsl_local_config_write — Generate a MPC85xx local config space write
fsl_rio_config_read — Generate a MPC85xx read maintenance transaction
fsl_rio_config_write — Generate a MPC85xx write maintenance transaction
fsl_rio_setup — Setup Freescale PowerPC RapidIO interface