* config/avr/avr.c (avr_mcu_types): Add entries for atmega48,
	atmega88, atmega168, attiny13, attiny2313, at90can128, atmega165,
	atmega325, atmega3250, atmega645 and atmega6450.
	* config/avr/avr.h (LINK_SPEC): Ditto.
	(LIB_SPEC): Ditto.
	(LIBGCC_SPEC): Ditto.
	(CRT_BINUTILS_SPECS): Ditto.
	* config/avr/t-avr (MULTILIB_MATCHES): Ditto.

From-SVN: r91432