* config/rs6000/rs6000.c (rs6000_file_start): Note PPC405 erratum
	in verbose_asm output.
	* config/rs6000/rs6000.h (PPC405_ERRATUM77): Bracket with
	CONFIG_PPC405CR.
	* config.gcc (powerpc with_which): Define CONFIG_PPC405CR for
	405cr.

From-SVN: r101356