[Patch,AVR]: Use CC to compile gen-avr-mmcu-texi.c

[Georg-Johann Lay]

http://gcc.gnu.org/viewcvs?view=revision&revision=190473

Committed this to compile gen-avr-mmcu-texi.c with the C compiler.

Johann

--

        * config/avr/t-avr (gen-avr-mmcu-texi): Use $(CC) to compile
        gen-avr-mmcu-texi.c.