cmake HAS_GLES examples

RasPlex/OpenPHT plex/CMakeModules/PlatformConfigAML.cmake :197 

add_definitions(
  -DTARGET_LINUX
  -DHAS_GLES=2
  -DHAS_LIBAMCODEC
  -DHAS_BUILTIN_SYNC_ADD_AND_FETCH
  -DHAS_BUILTIN_SYNC_SUB_AND_FETCH
  -DHAS_BUILTIN_SYNC_VAL_COMPARE_AND_SWAP
)

RasPlex/OpenPHT plex/CMakeModules/PlatformConfigRPI.cmake :202 

add_definitions(
  -DTARGET_LINUX
  -D_ARMEL
  -DTARGET_RPI
  -DHAS_GLES=2
  -DHAS_MMAL
  -DHAVE_OMXLIB
  -DOMX_SKIP64BIT
  -DHAS_BUILTIN_SYNC_ADD_AND_FETCH
  -DHAS_BUILTIN_SYNC_SUB_AND_FETCH
  -DHAS_BUILTIN_SYNC_VAL_COMPARE_AND_SWAP
  -DHAS_OMXPLAYER
  -DHAVE_CEC_RPI_API
)