gpiolib: replace snprintf("%s") with strscpy

Replace snprintf("%s", ...) with strscpy() for direct string copying.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260222170327.281576-2-thorsten.blum@linux.dev
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

drivers/gpio/gpiolib.h

@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/notifier.h>
 #include <linux/spinlock.h>
+#include <linux/string.h>
 #include <linux/srcu.h>
 #include <linux/workqueue.h>
 
@@ -107,7 +108,7 @@ extern const char *const gpio_suffixes[];
 		if (con_id)								\
 			snprintf(propname, sizeof(propname), "%s-%s", con_id, __gs);	\
 		else									\
-			snprintf(propname, sizeof(propname), "%s", __gs);		\
+			strscpy(propname, __gs);					\
 		1;									\
 	     });									\
 	     __suffixes++)