fixup! Pass platform context to tests

Author: Patater

tls-client/HelloHttpsClient.h

@@ -25,14 +25,13 @@
 #include "TCPSocket.h"
 
 #include "mbedtls/config.h"
+#include "mbedtls/platform.h"
 #include "mbedtls/ssl.h"
 #include "mbedtls/entropy.h"
 #include "mbedtls/ctr_drbg.h"
 #include "mbedtls/error.h"
 #include "mbedtls/debug.h"
 
-typedef struct mbedtls_platform_context;
-
 #include <stdint.h>
 
 /**