soc: qcom: rmtfs: constify rmtfs_class

The rmtfs class object is never modified and can be made constant.

Reviewed-by: Dmitry Baryshkov <[e-mail]>
Signed-off-by: Bartosz Golaszewski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bjorn Andersson <[e-mail]>

drivers/soc/qcom/rmtfs_mem.c

···
 	return 0;
 }
 
-static struct class rmtfs_class = {
+static const struct class rmtfs_class = {
 	.name           = "rmtfs",
 };