scsi: atari_scsi: Mark driver struct with __refdata to prevent section mismatch

As described in the added code comment, a reference to .exit.text is ok for
drivers registered via module_platform_driver_probe(). Make this explicit
to prevent the following section mismatch warning

	WARNING: modpost: drivers/scsi/atari_scsi: section mismatch in reference: atari_scsi_driver+0x8 (section: .data) -> atari_scsi_remove (section: .exit.text)

that triggers on an allmodconfig W=1 build.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/0170bda7ac0be3d8b694dca1b2f079fb17d9539b.1711746359.git.u.kleine-koenig@pengutronix.deSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/atari_scsi.c

@@ -878,7 +878,13 @@ static void __exit atari_scsi_remove(struct platform_device *pdev)
 		atari_stram_free(atari_dma_buffer);
 }
 
-static struct platform_driver atari_scsi_driver = {
+/*
+ * atari_scsi_remove() lives in .exit.text. For drivers registered via
+ * module_platform_driver_probe() this is ok because they cannot get unbound at
+ * runtime. So mark the driver struct with __refdata to prevent modpost
+ * triggering a section mismatch warning.
+ */
+static struct platform_driver atari_scsi_driver __refdata = {
 	.remove_new = __exit_p(atari_scsi_remove),
 	.driver = {
 		.name	= DRV_MODULE_NAME,