fix gld to use 32bit only if we are using gld 64bit

*** 8,18 ****
  include ../Makefile.solaris.defs
  
  
  GRUB            = grub
  GRUB_OBJS       = asmstub.o main.o
! $(GRUB)         := LIBS = ../stage2/libgrub.a ../lib/libcommon.a -lcurses
  $(GRUB)         := LDFLAGS += $(LDLIBS.cmd)
  $(GRUB)         := CCLD = $(CC)
  
  #
  # The grub shell interposes on the getopt() family.  Should direct bindings be
--- 8,18 ----
  include ../Makefile.solaris.defs
  
  
  GRUB            = grub
  GRUB_OBJS       = asmstub.o main.o
! $(GRUB)         := LIBS = ../stage2/libgrub.a ../lib/libcommon.a -lcurses -m32
  $(GRUB)         := LDFLAGS += $(LDLIBS.cmd)
  $(GRUB)         := CCLD = $(CC)
  
  #
  # The grub shell interposes on the getopt() family.  Should direct bindings be