fix for undefined symbol 'panic'

[David Cornejo]

I think this is the fix.

in directory /usr/src/sys/sparc64/include

*** asmacros.h~ Tue Jul 15 14:08:43 2003
--- asmacros.h  Sat Jan 24 11:27:26 2004
***************
*** 102,108 ****
   9:    .asciz  msg ; \
         .previous ; \
         SET(9b, r1, %o0) ; \
!       call    panic ; \
          nop

   #ifdef INVARIANTS
--- 102,108 ----
   9:    .asciz  msg ; \
         .previous ; \
         SET(9b, r1, %o0) ; \
!       call    __panic ; \
          nop

   #ifdef INVARIANTS