egl/loader: move crtc resource infrastructure as common helper

egl/loader: move crtc resource infrastructure as common helper

Patch moves (and renames) the infrastructure to fix compilation
failures when dri3 is not enabled in the build.

Fixes: 3170b63314f ("loader: Add infrastructure for tracking active CRTC resources");
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/8476
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22897>