drm/i915: Don't pass the framebuffer to low level pinning functions

drm/i915: Don't pass the framebuffer to low level pinning functions

Now that we have the pin_params the low level pinning code no
longer needs the entire framebuffer structure. The gem object
alone (along with the pin_params) is enough.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260416174448.28264-12-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>