Use correct include headers

Some headers are overkilled, and the order should be

/* LibC */
include <stdxxx.h>

/* Framework */
include <os.h>

/* Local */
include "EthUstream.h"

src_common/ethUstream.c

@@ -15,6 +15,8 @@
 *  limitations under the License.
 ********************************************************************************/
 
+#include <stdint.h>
+
 #include "ethUstream.h"
 #include "ethUtils.h"
 

src_common/ethUstream.h

@@ -18,9 +18,11 @@
 #ifndef _ETHUSTREAM_H_
 #define _ETHUSTREAM_H_
 
+#include <stdbool.h>
+#include <stdint.h>
+
 #include "os.h"
 #include "cx.h"
-#include <stdbool.h>
 
 struct txContext_t;
 

src_common/ethUtils.c

@@ -23,9 +23,12 @@
  * @date 8th of March 2016
  */
 
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+
 #include "os.h"
 #include "cx.h"
-#include <stdbool.h>
 #include "ethUtils.h"
 #include "chainConfig.h"
 

src_common/ethUtils.h

@@ -18,7 +18,8 @@
 #ifndef _ETHUTILS_H_
 #define _ETHUTILS_H_
 
-#include "os.h"
+#include <stdint.h>
+
 #include "cx.h"
 
 /**

src_common/uint256.c

@@ -19,6 +19,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+
 #include "uint256.h"
 
 static const char HEXDIGITS[] = "0123456789abcdef";