[OpenCL] Extends matmul_benchmark.py to cover SYCL (#11697)

* [OpenCL] Extends matmul_benchmark.py to cover SYCL

* Fixed typo

* /gpu:0 -> /device:GPU:0

* Fixes control_flow_ops_py_test

* /gpu: -> /device:GPU:

* Fixes //tensorflow/python/profiler/internal:run_metadata_test

* gpu: -> GPU:

* Fixes tfprof_node

* [OpenCL] Fixes device path to name with many colons (#123)

The device path is constructed from a device name by replacing all
colons with underscores. Some device names contain more than one colon,
for example 'device:SYCL:0' which gives a path 'device_SYCL_0'. The
previous code would not convert this back to the original device name,
but rather to 'device:SYCL_0'.

An alternative fix would be to convert all underscores to colons in the
device name (i.e. remove the restriction inside `replace("_", ":", 1)`),
however I'm not sure if there are any device names which contain
underscores.

* If no gpu device aviable fake one

* gpu: -> device:GPU

* Fixes profiler test

* /gpu:x -> /device:GPU:x

* Fixes debug_io_utils_test.cc test

* Fixes device_name_utils_test.cc