platform/chrome: cros_typec_vdm: Mark port_amode_ops const

Mark this struct of functions const so it moves to RO memory.

Cc: Prashant Malani <pmalani@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20231003003429.1378109-4-swboyd@chromium.orgSigned-off-by: Tzung-Bi Shih <tzungbi@kernel.org>

drivers/platform/chrome/cros_typec_vdm.c

@@ -142,7 +142,7 @@ static int cros_typec_port_amode_vdm(struct typec_altmode *amode, const u32 hdr,
 			   sizeof(req), NULL, 0);
 }
 
-struct typec_altmode_ops port_amode_ops = {
+const struct typec_altmode_ops port_amode_ops = {
 	.enter = cros_typec_port_amode_enter,
 	.vdm = cros_typec_port_amode_vdm,
 };

drivers/platform/chrome/cros_typec_vdm.h

@@ -5,7 +5,7 @@
 
 #include <linux/usb/typec_altmode.h>
 
-extern struct typec_altmode_ops port_amode_ops;
+extern const struct typec_altmode_ops port_amode_ops;
 
 void cros_typec_handle_vdm_attention(struct cros_typec_data *typec, int port_num);
 void cros_typec_handle_vdm_response(struct cros_typec_data *typec, int port_num);