rtc: mxc: Remove unneeded of_match_ptr()

i.MX is a DT-only platform, so of_match_ptr() can be safely
removed.

Remove the unneeded of_match_ptr().

Signed-off-by: Fabio Estevam <[e-mail]>
Signed-off-by: Alexandre Belloni <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/rtc/rtc-mxc.c

···
 static struct platform_driver mxc_rtc_driver = {
 	.driver = {
 		   .name	= "mxc_rtc",
-		   .of_match_table = of_match_ptr(imx_rtc_dt_ids),
+		   .of_match_table = imx_rtc_dt_ids,
 	},
 	.probe = mxc_rtc_probe,
 };