add support for gcc v4.3.1 & v4.3.2 (closes: #3479), thanks to Luigi Mantellini!

toolchain/gcc/Config.in

toolchain/gcc/Config.version

toolchain/gcc/Makefile

toolchain/gcc/patches/4.3.1/100-uclibc-conf.patch

toolchain/gcc/patches/4.3.1/104-gnuhurd-uclibc-conf.patch

toolchain/gcc/patches/4.3.1/105-libtool.patch

toolchain/gcc/patches/4.3.1/301-missing-execinfo_h.patch

toolchain/gcc/patches/4.3.1/302-c99-snprintf.patch

...chain/gcc/patches/4.3.1/305-libmudflap-susv3-legacy.patch

toolchain/gcc/patches/4.3.1/810-arm-softfloat-libgcc.patch

toolchain/gcc/patches/4.3.1/910-mbsd_multi.patch

...cc/patches/4.3.1/993-arm_insn-opinit-RTX_CODE-fixup.patch

toolchain/gcc/patches/4.3.1/995-short-enums.diff

...chain/gcc/patches/4.3.1/998-gcc-4.3.0-fix-header.00.patch

toolchain/gcc/patches/4.3.1/999-coldfire.patch

toolchain/gcc/patches/4.3.2/100-uclibc-conf.patch

toolchain/gcc/patches/4.3.2/104-gnuhurd-uclibc-conf.patch

toolchain/gcc/patches/4.3.2/105-libtool.patch

toolchain/gcc/patches/4.3.2/301-missing-execinfo_h.patch

toolchain/gcc/patches/4.3.2/302-c99-snprintf.patch