opengl translator: fixed normalized vertex attribs

That fixes the alpha and GUI components artifacts in Cordy.
The translator has ignored the 'normalized' argument of
glVertexAttribPointer function in GLESv2.
We now use the supplied value when applying the vertex attributes
to the backend OpenGL so that non-float color vertex attributes
are now normalized.

Change-Id: Idffda33225748276144ed70d2dcf4da17219d1d2
6 files changed