6428786 Oberon IGN value need to be tuned for device with larger LLEAFID

[nore...@opensolaris.org]

Author: am139583
Repository: /hg/onnv/onnv-gate
Revision: b6b3ce87b43f8171a587e630b6cbe30b48c95544
Log message:
6428786 Oberon IGN value need to be tuned for device with larger LLEAFID

Files:
        update: usr/src/uts/sun4u/io/px/px_hlib.c
        update: usr/src/uts/sun4u/io/px/px_lib4u.h