* config/rl78/divmodhi.S: Add support for the G10 architecture. Use START_FUNC and END_FUNC macros to enable linker garbage collection. * config/rl78/divmodqi.S: Likewise. * config/rl78/divmodsi.S: Likewise. * config/rl78/mulsi3.S: Likewise. * config/rl78/lib2div.c: Remove G10 functions. * config/rl78/lib2muls.c: Likewise. * config/rl78/t-rl8 (HOST_LIBGCC2_CFLAGS): Define. * config/rl78/vregs.h (START_FUNC): New macro. (END_FUNC): New macro. From-SVN: r217463