Update IDF to 3.2-3276a13 and esptool.py to 2.5.0 (#1878)

* TX Flow Control and Code cleanup

* Use semaphore instead of delay

TX functionality is done.

* Use single buffer and empty queue on exit

* Fix compile issues because of LwIP code relocation

* Add temporary header to fix Azure not compiling

* Fix AsyncUDP early init

* AsyncUDP Multicast fixes

* Add source mac address and rework multicast

* Allow redefinition of default pins for Serials 1 and 2

* Update IDF to 3276a13

* Update esptool.py to 2.5.0

* Fix sketches

* Fix log level in BluetoothSetial

tools/sdk/include/lwip/netif/ppp/mppe.h

@@ -33,17 +33,13 @@
  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include "lwip/opt.h"
+#include "netif/ppp/ppp_opts.h"
 #if PPP_SUPPORT && MPPE_SUPPORT  /* don't build if not configured for use in lwipopts.h */
 
 #ifndef MPPE_H
 #define MPPE_H
 
-#if LWIP_INCLUDED_POLARSSL_ARC4
-#include "netif/ppp/polarssl/arc4.h"
-#else
-#include "polarssl/arc4.h"
-#endif
+#include "netif/ppp/pppcrypt.h"
 
 #define MPPE_PAD		4	/* MPPE growth per frame */
 #define MPPE_MAX_KEY_LEN	16	/* largest key length (128-bit) */
@@ -63,7 +59,7 @@
  * This is not nice ... the alternative is a bitfield struct though.
  * And unfortunately, we cannot share the same bits for the option
  * names above since C and H are the same bit.  We could do a u_int32
- * but then we have to do a htonl() all the time and/or we still need
+ * but then we have to do a lwip_htonl() all the time and/or we still need
  * to know which octet is which.
  */
 #define MPPE_C_BIT		0x01	/* MPPC */
@@ -152,7 +148,7 @@ static const u8_t mppe_sha1_pad2[SHA1_PAD_SIZE] = {
  * State for an MPPE (de)compressor.
  */
 typedef struct ppp_mppe_state {
-	arc4_context arc4;
+	lwip_arc4_context arc4;
 	u8_t master_key[MPPE_MAX_KEY_LEN];
 	u8_t session_key[MPPE_MAX_KEY_LEN];
 	u8_t keylen;                /* key length in bytes */