Switch over MANUFACTURER and PRODUCT to string literals (#18183)

keyboards/massdrop/alt/config.h

@@ -20,8 +20,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "config_common.h"
 
 /* USB Device descriptor parameter */
-#define MANUFACTURER        "Massdrop Inc."
-#define PRODUCT             "ALT Keyboard"
 #define SERIAL_NUM          "Unavailable"
 
 /* key matrix size */

keyboards/massdrop/alt/info.json

@@ -1,5 +1,6 @@
 {
-    "keyboard_name": "ALT",
+    "keyboard_name": "ALT Keyboard",
+    "manufacturer": "Massdrop Inc.",
     "url": "https://www.massdrop.com/buy/massdrop-alt-mechanical-keyboard",
     "maintainer": "Massdrop",
     "usb": {