glrenderer: Fix to prevent creation of GL_TEXTURE_MAG_FILTER filters with incorrect values
In !5676 (merged) , it is trying to create a GL_TEXTURE_MAG_FILTER
specifying GL_LINEAR_MIPMAP_LINEAR
against the OpenGL specification,
It completely breaks the OpenGL backend, at least on MacOS.
This MR fixes it by the same means as gskglrenderjob.c to avoid creating GL_TEXTURE_MAG_FILTER
with incorrect values.
Edited by sumibi-yakitori