* som.c (som_bfd_derive_misc_symbol_info): Treat undefined code

	* som.c (som_bfd_derive_misc_symbol_info): Treat undefined code
	symbols and undefined symbols which no type in the same manner
	if the associated BFD symbol has BSF_FUNCTION set.  For a defined
	symbol which no type, select a SOM type based on the flags of the
	section containing the symbol.
	(som_slurp_symbol_type): Set BSF_FUNCTION for undefined ST_STUB
	or ST_CODE symbols (importing a non-function code symbol is
	meaningless in SOM).
	(som_set_reloc_info): Don't set "offset" to the section's vma; it
	should always start at zero.