mesa: Fix display list handling for EXT_framebuffer_object.

mesa: Fix display list handling for EXT_framebuffer_object.

Noticed when handling a similar problem in EXT_framebuffer_multisample.

From the EXT_framebuffer_object spec:

    Added to section 5.4, as part of the discussion of which commands
    are not compiled into display lists:

    "Certain commands, when called while compiling a display list, are
    not compiled into the display list but are executed immediately.
    These are: ..., GenFramebuffersEXT, BindFramebufferEXT,
    DeleteFramebuffersEXT, CheckFramebufferStatusEXT,
    GenRenderbuffersEXT, BindRenderbufferEXT, DeleteRenderbuffersEXT,
    RenderbufferStorageEXT, FramebufferTexture1DEXT,
    FramebufferTexture2DEXT, FramebufferTexture3DEXT,
    FramebufferRenderbufferEXT, GenerateMipmapEXT..."

Reviewed-by: Brian Paul <brianp@vmware.com>