rpmsg: move from strlcpy with unused retval to strscpy

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220818210100.7277-1-wsa+renesas@sang-engineering.com

Author: Wolfram Sang

drivers/rpmsg/qcom_glink_ssr.c

@@ -111,7 +111,7 @@ static int qcom_glink_ssr_notifier_call(struct notifier_block *nb,
 	msg.command = cpu_to_le32(GLINK_SSR_DO_CLEANUP);
 	msg.seq_num = cpu_to_le32(ssr->seq_num);
 	msg.name_len = cpu_to_le32(strlen(ssr_name));
-	strlcpy(msg.name, ssr_name, sizeof(msg.name));
+	strscpy(msg.name, ssr_name, sizeof(msg.name));
 
 	ret = rpmsg_send(ssr->ept, &msg, sizeof(msg));
 	if (ret < 0)