Fix following WiFi bugs:
1. Fix the bug for API_CHECK_ENABLED
2. Fix the bug that wpa2 enterprise sta can connect open AP
3. Fix TKIP/CCMP PN replay attack detection bug
4. Increase buffer number type from uint8_t to uint16_t to support more than 255 buffers
5. Avoid recalculating PMK if esp_wifi_set_config() is not called
6. Fix 5.5M signal test bug