These names better convey intent of conversion (to or from host endian)
and loosely matches standard htonl/ntohl functions.
We also move them in osal/preproc.h
Values comming from CIC at poweron/reset were written too early in PIF
RAM. There was a possibility of them getting overwritten by some SI DMA
requests (such as reading mempaks [Perfect Dark]) during the time window
between PIF_INT and NMI_INT.
Now we delay this until NMI_INT is triggered.