media: atomisp: mt9m114: replace fixed function names

There are a couple of debug messages using hardcoded function names
instead of the preferred __func__ magic constant.

Replace them:

WARNING: Prefer using '"%s...", __func__' to using 'misensor_rmw_reg', this function's name, in a string
215: FILE: ./media/atomisp/i2c/atomisp-mt9m114.c:215:
+       v4l2_err(client, "misensor_rmw_reg error exit, read failed\n");

WARNING: Prefer using '"%s...", __func__' to using 'misensor_rmw_reg', this function's name, in a string
236: FILE: ./media/atomisp/i2c/atomisp-mt9m114.c:236:
+       v4l2_err(client, "misensor_rmw_reg error exit, write failed\n");
Signed-off-by: Juan Antonio Aldea-Armenteros <juant.aldea@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c

@@ -212,7 +212,7 @@ misensor_rmw_reg(struct i2c_client *client, u16 data_length, u16 reg,
 
 	err = mt9m114_read_reg(client, data_length, reg, &val);
 	if (err) {
-		v4l2_err(client, "misensor_rmw_reg error exit, read failed\n");
+		v4l2_err(client, "%s error exit, read failed\n", __func__);
 		return -EINVAL;
 	}
 
@@ -233,7 +233,7 @@ misensor_rmw_reg(struct i2c_client *client, u16 data_length, u16 reg,
 
 	err = mt9m114_write_reg(client, data_length, reg, val);
 	if (err) {
-		v4l2_err(client, "misensor_rmw_reg error exit, write failed\n");
+		v4l2_err(client, "%s error exit, write failed\n", __func__);
 		return -EINVAL;
 	}