print: make PrintRawDataFp take a const arg

src/util-print.c

@@ -133,7 +133,7 @@ void PrintRawUriBuf(char *retbuf, uint32_t *offset, uint32_t retbuflen,
     return;
 }
 
-void PrintRawDataFp(FILE *fp, uint8_t *buf, uint32_t buflen)
+void PrintRawDataFp(FILE *fp, const uint8_t *buf, uint32_t buflen)
 {
     int ch = 0;
     uint32_t u = 0;

src/util-print.h

@@ -46,7 +46,7 @@ void PrintRawUriFp(FILE *, uint8_t *, uint32_t);
 void PrintRawUriBuf(char *, uint32_t *, uint32_t,
                     uint8_t *, uint32_t);
 void PrintRawJsonFp(FILE *, uint8_t *, uint32_t);
-void PrintRawDataFp(FILE *, uint8_t *, uint32_t);
+void PrintRawDataFp(FILE *, const uint8_t *, uint32_t);
 void PrintRawDataToBuffer(uint8_t *dst_buf, uint32_t *dst_buf_offset_ptr, uint32_t dst_buf_size,
                           uint8_t *src_buf, uint32_t src_buf_len);
 void PrintStringsToBuffer(uint8_t *dst_buf, uint32_t *dst_buf_offset_ptr, uint32_t dst_buf_size,