fix(esp_wifi): Set default nvs value for sae identifier to NULL

Author: Shreyas0-7

components/esp_wifi/include/esp_wifi_types_generic.h

@@ -566,7 +566,7 @@ typedef struct {
     uint32_t he_trig_mu_bmforming_partial_feedback_disabled: 1;   /**< Whether to disable support the transmission of partial-bandwidth MU feedback in an HE TB sounding sequence. */
     uint32_t he_trig_cqi_feedback_disabled: 1;                    /**< Whether to disable support the transmission of CQI feedback in an HE TB sounding sequence. */
     uint32_t he_reserved: 22;                                     /**< Reserved for future feature set */
-    uint8_t sae_h2e_identifier[SAE_H2E_IDENTIFIER_LEN];           /**< Password identifier for H2E. this needs to be null terminated string */
+    uint8_t sae_h2e_identifier[SAE_H2E_IDENTIFIER_LEN];           /**< Password identifier for H2E. Strings null-terminated (length < SAE_H2E_IDENTIFIER_LEN) or non-null terminated (length = SAE_H2E_IDENTIFIER_LEN) are accepted. Non-null terminated string with 0xFF for full length of SAE_H2E_IDENTIFIER_LEN is not considered a valid identifier */
 } wifi_sta_config_t;
 
 /**