[Silabs][SiWx917] Adding the LED define for the 917 soc (project-chip#33228)

* adding the led define for the 917 soc

* Restyled by gn

---------

Co-authored-by: Restyled.io <commits@restyled.io>

Author: chirag-silabs

third_party/silabs/SiWx917_sdk.gni

@@ -282,7 +282,12 @@ template("siwx917_sdk") {
 
     # Enabling led interface
     if (use_wstk_leds) {
-      defines += [ "ENABLE_WSTK_LEDS" ]
+      defines += [
+        "ENABLE_WSTK_LEDS",
+
+        # TODO: remove this when it is added to the board config from wifi sdk
+        "SL_CATALOG_SIMPLE_LED_LED1_PRESENT",
+      ]
     }
 
     if (chip_enable_icd_server) {