nvmem: imx: add i.MX8QM platform support

i.MX8QM efuse table has some difference with i.MX8QXP platform,
so add i.MX8QM platform support.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20190818093345.29647-8-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/nvmem/imx-ocotp-scu.c

@@ -16,6 +16,7 @@
 
 enum ocotp_devtype {
 	IMX8QXP,
+	IMX8QM,
 };
 
 struct ocotp_devtype_data {
@@ -39,6 +40,11 @@ static struct ocotp_devtype_data imx8qxp_data = {
 	.nregs = 800,
 };
 
+static struct ocotp_devtype_data imx8qm_data = {
+	.devtype = IMX8QM,
+	.nregs = 800,
+};
+
 static int imx_sc_misc_otp_fuse_read(struct imx_sc_ipc *ipc, u32 word,
 				     u32 *val)
 {
@@ -118,6 +124,7 @@ static struct nvmem_config imx_scu_ocotp_nvmem_config = {
 
 static const struct of_device_id imx_scu_ocotp_dt_ids[] = {
 	{ .compatible = "fsl,imx8qxp-scu-ocotp", (void *)&imx8qxp_data },
+	{ .compatible = "fsl,imx8qm-scu-ocotp", (void *)&imx8qm_data },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, imx_scu_ocotp_dt_ids);