Fix GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT query for OpenGL ES 2.0.
Fix GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT query for OpenGL ES 2.0.

It is part of GL_EXT_color_buffer_half_float.

Change-Id: Icaba1efed8b4e5ad97e583ebdad7b777cf4c7ad8
Reviewed-on: https://swiftshader-review.googlesource.com/5596
Reviewed-by: Alexis Hétu <1c7141772178a7e80858c3db5052b328076f08f4@google.com>
Reviewed-by: Nicolas Capens <0612353e1fcebbfd4b302d9337447ca0cdfa9122@google.com>
Tested-by: Nicolas Capens <0612353e1fcebbfd4b302d9337447ca0cdfa9122@google.com>

bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader