Remove compile warnings in fpga code
Patch by Stefan Roese, 07 Oct 2006
diff --git a/common/cmd_fpga.c b/common/cmd_fpga.c
index df859bd..3444091 100644
--- a/common/cmd_fpga.c
+++ b/common/cmd_fpga.c
@@ -263,9 +263,9 @@
 				puts ("Bad Magic Number\n");
 				return 1;
 			}
-			data = (char *)(fpga_data + sizeof(image_header_t));
+			data = ((ulong)fpga_data + sizeof(image_header_t));
 			data_size  = ntohl(hdr->ih_size);
-			rc = fpga_load (dev, data, data_size);
+			rc = fpga_load (dev, (void *)data, data_size);
 		}
 		break;