Remove bundled ECCX08 driver, and use ArduinoECCX08 library

Author: sandeepmistry

README.adoc

@@ -1,6 +1,8 @@
 = ArduinoBearSSL =
 
-Port of https://bearssl.org[BearSSL] to Arduino
+Port of https://bearssl.org[BearSSL] to Arduino.
+
+This library depends on ArduinoECCX08.
 
 For more information about this library please visit us at
 http://www.arduino.cc/en/Reference/ArduinoBearSSL

library.properties

@@ -2,8 +2,8 @@ name=ArduinoBearSSL
 version=1.0.1
 author=Arduino
 maintainer=Arduino <info@arduino.cc>
-sentence=Port of BearSSL to Arduino
-paragraph=
+sentence=Port of BearSSL to Arduino.
+paragraph=This library depends on ArduinoECCX08.
 category=Communication
 url=http://www.arduino.cc/en/Reference/ArduinoBearSSL
 architectures=*

src/BearSSLClient.cpp

@@ -22,9 +22,10 @@
  * SOFTWARE.
  */
 
+#include <ArduinoECCX08.h>
+
 #include "ArduinoBearSSL.h"
 #include "BearSSLTrustAnchors.h"
-#include "utility/ECCX08.h"
 #include "utility/eccX08_asn1.h"
 
 #include "BearSSLClient.h"