Unify the include guards accross all header files

src_common/ethUstream.h

@@ -164,4 +164,4 @@ parserStatus_e continueTx(txContext_t *context);
 void copyTxData(txContext_t *context, uint8_t *out, uint32_t length);
 uint8_t readTxByte(txContext_t *context);
 
-#endif /* _ETHUSTREAM_H_ */
+#endif  // _ETHUSTREAM_H_

src_common/ethUtils.h

@@ -87,4 +87,4 @@ static __attribute__((no_instrument_function)) inline int ismaxint(uint8_t *buf,
 
 static const char HEXDIGITS[] = "0123456789abcdef";
 
-#endif /* _ETHUTILS_H_ */
+#endif  // _ETHUTILS_H_

src_common/network.h

@@ -1,3 +1,6 @@
+#ifndef _NETWORK_H_
+#define _NETWORK_H_
+
 #include <stdint.h>
 #include "tokens.h"
 #include "shared_context.h"
@@ -17,4 +20,6 @@ const network_info_t *get_network(void);
 // Returns a pointer to the network name, or NULL if there is none.
 const char *get_network_name(void);
 // Returns a pointer to the network ticker, or chainConfig->coinName if there is none.
-const char *get_network_ticker(void);
+const char *get_network_ticker(void);
+
+#endif  // _NETWORK_H_

src_common/uint256.h

@@ -73,4 +73,4 @@ void divmod256(uint256_t *l, uint256_t *r, uint256_t *div, uint256_t *mod);
 bool tostring128(uint128_t *number, uint32_t base, char *out, uint32_t outLength);
 bool tostring256(uint256_t *number, uint32_t base, char *out, uint32_t outLength);
 
-#endif /* _UINT256_H_ */
+#endif  // _UINT256_H_