toolchain/gcc: add support for gcc-4.4.4

toolchain/gcc/Config.in

toolchain/gcc/Config.version

toolchain/gcc/Makefile

toolchain/gcc/patches/4.4.4/100-uclibc-conf.patch

toolchain/gcc/patches/4.4.4/301-missing-execinfo_h.patch

toolchain/gcc/patches/4.4.4/302-c99-snprintf.patch

...chain/gcc/patches/4.4.4/305-libmudflap-susv3-legacy.patch

toolchain/gcc/patches/4.4.4/600-ubicom_support.patch

toolchain/gcc/patches/4.4.4/810-arm-softfloat-libgcc.patch

toolchain/gcc/patches/4.4.4/820-libgcc_pic.patch

toolchain/gcc/patches/4.4.4/910-mbsd_multi.patch

...cc/patches/4.4.4/993-arm_insn-opinit-RTX_CODE-fixup.patch

toolchain/gcc/patches/4.4.4/999-coldfire.patch