fix(example): Require native BLE for switch example

Author: lucasssvaz

libraries/WiFi/examples/WiFiBlueToothSwitch/WiFiBlueToothSwitch.ino

@@ -15,6 +15,11 @@
 // Sketch shows how to switch between WiFi and BlueTooth or use both
 // Button is attached between GPIO 0 and GND and modes are switched with each press
 
+#include "soc/soc_caps.h"
+#if !CONFIG_SOC_BT_SUPPORTED
+#error "This example requires native Bluetooth support"
+#endif
+
 #include "WiFi.h"
 #define STA_SSID "your-ssid"
 #define STA_PASS "your-pass"

libraries/WiFi/examples/WiFiBlueToothSwitch/ci.json

@@ -1,6 +1,6 @@
 {
   "requires": [
-    "CONFIG_BT_ENABLED=y"
+    "CONFIG_SOC_BT_SUPPORTED=y"
   ],
   "requires_any": [
     "CONFIG_SOC_WIFI_SUPPORTED=y",