media: replace strncpy() by strscpy()

The strncpy() function is being deprecated upstream. Replace
it by the safer strscpy().

While here, replace a few occurences of strlcpy() that were
recently added to also use strscpy().

Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/dvb-frontends/as102_fe.c

@@ -467,7 +467,7 @@ struct dvb_frontend *as102_attach(const char *name,
 
 	/* init frontend callback ops */
 	memcpy(&fe->ops, &as102_fe_ops, sizeof(struct dvb_frontend_ops));
-	strncpy(fe->ops.info.name, name, sizeof(fe->ops.info.name));
+	strscpy(fe->ops.info.name, name, sizeof(fe->ops.info.name));
 
 	return fe;