ARC: Bump ARC tools used in TravisCI to the most recent release arc-2017.09

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

.travis.yml

@@ -38,7 +38,7 @@ install:
  - echo -e "[toolchain]\nroot = /usr" > ~/.buildman
  - echo -e "aarch64 = /tmp/gcc-linaro-6.3.1-2017.02-x86_64_aarch64-linux-gnu" >> ~/.buildman
  - echo -e "arm = /tmp/gcc-linaro-6.3.1-2017.02-x86_64_arm-linux-gnueabihf" >> ~/.buildman
- - echo -e "arc = /tmp/arc_gnu_2016.09_prebuilt_uclibc_le_archs_linux_install" >> ~/.buildman
+ - echo -e "arc = /tmp/arc_gnu_2017.09_prebuilt_uclibc_le_archs_linux_install" >> ~/.buildman
  - echo -e "\n[toolchain-alias]\nsh = sh4\nopenrisc = or32" >> ~/.buildman
  - cat ~/.buildman
  - virtualenv /tmp/venv
@@ -70,8 +70,8 @@ before_script:
       echo -e "\n[toolchain-prefix]\nx86 = ${HOME}/.buildman-toolchains/gcc-4.9.0-nolibc/x86_64-linux/bin/x86_64-linux-" >> ~/.buildman;
     fi
   - if [[ "${TOOLCHAIN}" == arc ]]; then
-       wget https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2016.09-release/arc_gnu_2016.09_prebuilt_uclibc_le_archs_linux_install.tar.gz &&
-       tar -C /tmp -xf arc_gnu_2016.09_prebuilt_uclibc_le_archs_linux_install.tar.gz;
+       wget https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2017.09-release/arc_gnu_2017.09_prebuilt_uclibc_le_archs_linux_install.tar.gz &&
+       tar -C /tmp -xf arc_gnu_2017.09_prebuilt_uclibc_le_archs_linux_install.tar.gz;
     fi
   - if [[ "${TOOLCHAIN}" == *xtensa* ]]; then
        wget https://github.com/foss-xtensa/toolchain/releases/download/2018.02/x86_64-2018.02-${TOOLCHAIN}.tar.gz &&