6820480 unified wanboot loader needed 6903594 Unreferenced files and out-of-date comments in usr/src/psm --HG-- rename : usr/src/psm/promif/ieee1275/sun4u/prom_heartbeat.c => usr/src/psm/promif/ieee1275/sun4/prom_heartbeat.c rename : usr/src/psm/promif/ieee1275/sun4u/prom_mmu.c => usr/src/psm/promif/ieee1275/sun4/prom_mmu.c rename : usr/src/psm/promif/ieee1275/sun4u/prom_vercheck.c => usr/src/psm/promif/ieee1275/sun4/prom_vercheck.c rename : usr/src/psm/stand/boot/sparcv9/sun4u/machdep.c => usr/src/psm/stand/boot/sparc/common/sun4u_machdep.c rename : usr/src/psm/stand/boot/sparcv9/sun4v/machdep.c => usr/src/psm/stand/boot/sparc/common/sun4v_machdep.c