drm/panel: auo-a030jtn01: Fix compilation build

Commit 9d7d7c3c9a19 ("panel/auo-a030jtn01: 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: 9d7d7c3c9a19 ("panel/auo-a030jtn01: Use refcounted allocation in place of devm_kzalloc()")
Signed-off-by: Maxime Ripard <[e-mail]>
Reviewed-by: Thomas Zimmermann <[e-mail]>
Tested-by: Thomas Zimmermann <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Baryshkov <[e-mail]>

drivers/gpu/drm/panel/panel-auo-a030jtn01.c

···
 
 	spi->mode |= SPI_MODE_3 | SPI_3WIRE;
 
-	panel = devm_drm_panel_alloc(dev, struct a030jtn01, panel,
-				     &a030jtn01_funcs, DRM_MODE_CONNECTOR_DPI);
-	if (IS_ERR(panel))
-		return PTR_ERR(panel);
+	priv = devm_drm_panel_alloc(dev, struct a030jtn01, panel,
+				    &a030jtn01_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(priv))
+		return PTR_ERR(priv);
 
 	priv->spi = spi;
 	spi_set_drvdata(spi, priv);