sbuf->st_size already includes sizeof(struct imx_header),
so remove extra addition.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
 
        /* The external flash header must be at the end of the DCD table */
        dcd_v1->addr_data[dcd_len].type = sbuf->st_size +
-                               imxhdr->flash_offset +
-                               sizeof(struct imx_header);
+                               imxhdr->flash_offset;
 
        /* Security feature are not supported */
        fhdr_v1->app_code_csf = 0;
 
        hdr_v2->boot_data.start = fhdr_v2->self - imxhdr->flash_offset;
        hdr_v2->boot_data.size = sbuf->st_size +
-                       imxhdr->flash_offset +
-                       sizeof(struct imx_header);
+                       imxhdr->flash_offset;
 
        /* Security feature are not supported */
        fhdr_v2->csf = 0;