* config/xtensa/crti.asm (_init, _fini): Add alternate code for new
        call0 ABI.
        * config/xtensa/crtn.asm (_init, _fini): Likewise.
        * config/xtensa/lib1funcs.asm (__mulsi3, __udivsi3, __divsi3,
        __umodsi3, __modsi3): Likewise.
        * config/xtensa/t-xtensa (crti.o, crtn.o): Add $(GCC_CFLAGS) and
        $(INCLUDES).

From-SVN: r70552