gcc: add 4.9-linaro based on the 2014.09 release

toolchain/gcc/Config.in

toolchain/gcc/Config.version

toolchain/gcc/common.mk

.../patches/4.9-linaro/001-revert_register_mode_search.patch

toolchain/gcc/patches/4.9-linaro/010-documentation.patch

toolchain/gcc/patches/4.9-linaro/100-uclibc-conf.patch

toolchain/gcc/patches/4.9-linaro/200-musl.patch

...hes/4.9-linaro/210-disable_libsanitizer_off_t_check.patch

...in/gcc/patches/4.9-linaro/800-arm_v5te_no_ldrd_strd.patch

...ain/gcc/patches/4.9-linaro/810-arm-softfloat-libgcc.patch

toolchain/gcc/patches/4.9-linaro/820-libgcc_pic.patch

...chain/gcc/patches/4.9-linaro/830-arm_unbreak_armv4t.patch

...cc/patches/4.9-linaro/840-armv4_pass_fix-v4bx_to_ld.patch

toolchain/gcc/patches/4.9-linaro/850-use_shared_libgcc.patch

...hain/gcc/patches/4.9-linaro/860-uclibc_use_eh_frame.patch

toolchain/gcc/patches/4.9-linaro/870-ppc_no_crtsavres.patch

toolchain/gcc/patches/4.9-linaro/880-no_java_section.patch

toolchain/gcc/patches/4.9-linaro/900-bad-mips16-crt.patch

toolchain/gcc/patches/4.9-linaro/910-mbsd_multi.patch

...in/gcc/patches/4.9-linaro/920-specs_nonfatal_getenv.patch