Completed implementation of clGetDeviceInfo to pass conformance tests.
Completed implementation of clGetDeviceInfo to pass conformance tests.

bitfusionio/Oclgrind,surround-io/oclgrind,surround-io/oclgrind,mpflanzer/Oclgrind,mpflanzer/Oclgrind,surround-io/oclgrind,bitfusionio/Oclgrind,bitfusionio/Oclgrind,bitfusionio/Oclgrind,surround-io/oclgrind,mpflanzer/Oclgrind,mpflanzer/Oclgrind