兼容 asr1903

Change-Id: I3888f1adc86ea1fa73af4996d31f40223c0e5735
diff --git a/mbtk/libmbtk_lib/net/mbtk_sock_internal.h b/mbtk/libmbtk_lib/net/mbtk_sock_internal.h
index de822bc..a6a6241 100755
--- a/mbtk/libmbtk_lib/net/mbtk_sock_internal.h
+++ b/mbtk/libmbtk_lib/net/mbtk_sock_internal.h
@@ -9,6 +9,7 @@
 typedef struct {
     int fd;
     mbtk_sock_type type; // socket type:TCP or UDP
+#ifdef MBTK_SSL_SUPPORT	
 #ifdef MBTK_POLARSSL_SUPPORT
     entropy_context* entropy;
     ctr_drbg_context* ctr_drbg;
@@ -21,6 +22,7 @@
     SSL_CTX *ctx;
     SSL *ssl;
 #endif
+#endif
 } mbtk_sock_inter_info_s;
 
 typedef struct {