6492102 RESET_USER_RTT_REGS() checking is needed in OPL

[nore...@opensolaris.org]

Author: hyw
Repository: /hg/onnv/onnv-gate
Revision: fce614fe6d2e00d542f40a5522298bc4ce3535b9
Log message:
6492102 RESET_USER_RTT_REGS() checking is needed in OPL

Files:
        update: usr/src/uts/sun4u/cpu/opl_olympus_asm.s