Add Travis CI jobs for Arm and AArch64 (#638)

* Add Travis CI jobs for Arm and AArch64

- Use fixed Linaro toolchains
- Move travis script to a shell file

Signed-off-by: Kevin Petit <kevin.petit@arm.com>

* Fix Arm build and string comparisons added under #637

* Remove verbose flag on tar command

.travis.yml

@@ -4,27 +4,12 @@ os:
   - linux
   - osx
 
+jobs:
+  include:
+  - os: linux
+    env: JOB_ARCHITECTURE=arm
+  - os: linux
+    env: JOB_ARCHITECTURE=aarch64
+
 script:
-  - export TOP=$(pwd)
-  - git clone https://github.com/KhronosGroup/OpenCL-Headers.git
-  - cd OpenCL-Headers
-  - ln -s CL OpenCL # For OSX builds
-  - cd ..
-  - git clone https://github.com/KhronosGroup/OpenCL-ICD-Loader.git
-  - cd ${TOP}/OpenCL-ICD-Loader
-  - mkdir build
-  - cd build
-  - cmake -DOPENCL_ICD_LOADER_HEADERS_DIR=${TOP}/OpenCL-Headers/ ..
-  - make
-  - cd ${TOP}
-  - git clone https://github.com/KhronosGroup/libclcxx.git
-  - ls -l
-  - mkdir build
-  - cd build
-  - cmake -DCL_INCLUDE_DIR=${TOP}/OpenCL-Headers
-          -DCL_LIB_DIR=${TOP}/OpenCL-ICD-Loader/build
-          -DCL_LIBCLCXX_DIR=${TOP}/libclcxx
-          -DCMAKE_RUNTIME_OUTPUT_DIRECTORY=./bin
-          -DOPENCL_LIBRARIES="-lOpenCL -lpthread"
-          ..
-  - make -j2
+  - ./travis.sh