media: seco-cec: declare ops as static const

As warned by smatch:

	drivers/media/platform/seco-cec/seco-cec.c:338:21:  warning: symbol 'secocec_cec_adap_ops' was not declared. Should it be static?

This struct should be static. Also, it is const, so declare it
as such.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/seco-cec/seco-cec.c

@@ -335,7 +335,7 @@ static void secocec_rx_done(struct cec_adapter *adap, u16 status_val)
 	smb_wr16(SECOCEC_STATUS, status_val);
 }
 
-struct cec_adap_ops secocec_cec_adap_ops = {
+static const struct cec_adap_ops secocec_cec_adap_ops = {
 	/* Low-level callbacks */
 	.adap_enable = secocec_adap_enable,
 	.adap_log_addr = secocec_adap_log_addr,