drm/panel: boe-tv101wum-ll2: Fix compilation build

Commit 5d2b55e ("panel/boe-tv101wum-ll2: Use refcounted allocation
in place of devm_kzalloc()") switched from a kmalloc + drm_panel_init
call to a devm_drm_panel_alloc one.

However, the variable it was storing the allocated pointer in doesn't
exist, resulting in a compilation breakage.

Fixes: 5d2b55e ("panel/boe-tv101wum-ll2: Use refcounted allocation in place of devm_kzalloc()")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250408122008.1676235-3-mripard@kernel.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

Author: mripard

drivers/gpu/drm/panel/panel-boe-tv101wum-ll2.c

@@ -168,9 +168,9 @@ static int boe_tv101wum_ll2_probe(struct mipi_dsi_device *dsi)
 
 	ctx = devm_drm_panel_alloc(dev, struct boe_tv101wum_ll2, panel,
 				   &boe_tv101wum_ll2_panel_funcs,
-				   DRM_MODE_CONNECTOR_DSI
-	if (IS_ERR(panel))
-		return PTR_ERR(panel);
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ret = devm_regulator_bulk_get_const(&dsi->dev,
 					ARRAY_SIZE(boe_tv101wum_ll2_supplies),