v1.2.0

### Releases v1.2.0

1. Add support to LAN8720 Ethernet for many STM32F4 (F407xx, NUCLEO_F429ZI) and STM32F7 (DISCO_F746NG, NUCLEO_F746ZG, UCLEO_F756ZG) boards.
2. Add LAN8720 examples
3. Add Packages' Patches for STM32 to use LAN8720 with STM32Ethernet and LwIP libraries

Author: khoih-prog

examples/HttpBasicAuth/defines.h

@@ -27,8 +27,8 @@
 // If USE_BUILTIN_ETHERNET == false and USE_UIP_ETHERNET == false => 
 // either use W5x00 with EthernetXYZ library
 // or ENC28J60 with EthernetENC library
-//#define USE_BUILTIN_ETHERNET    true
-#define USE_BUILTIN_ETHERNET    false
+#define USE_BUILTIN_ETHERNET    true
+//#define USE_BUILTIN_ETHERNET    false
 
 //#define USE_UIP_ETHERNET        true
 #define USE_UIP_ETHERNET        false