mesa: Fix display list handling for GL_EXT_framebuffer_multisample.
From the extension 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: ..., RenderbufferStorageMultisampleEXT..."
Fixes piglit EXT_framebuffer_multisample/dlist.
Reviewed-by: Brian Paul <brianp@vmware.com>
(cherry picked from commit
3d8c27f882b852ada86aac99a54fdb57d98a79ac)