fix(nimble): Fix for clang compilation issues

examples/bluetooth/nimble/common/nimble_central_utils/misc.c

@@ -4,7 +4,21 @@
  * SPDX-License-Identifier: Unlicense OR CC0-1.0
  */
 
+#include <stdio.h>
+#include <string.h>
 #include "host/ble_hs.h"
+#include "esp_central.h"
+
+int
+peer_addr_parse(const char *addr_str, uint8_t addr[PEER_ADDR_VAL_SIZE])
+{
+    if (addr_str == NULL) {
+        return 0;
+    }
+    return sscanf(addr_str, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
+                  &addr[5], &addr[4], &addr[3],
+                  &addr[2], &addr[1], &addr[0]);
+}
 
 /**
  * Utility function to log an array of bytes.