fpga: Add support for getting external data address and length

This function supports getting both data address and length for
existing FPGA subimage and FPGA external data.
Signed-off-by: NTien Fong Chee <tien.fong.chee@intel.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

cmd/fpga.c

@@ -343,9 +343,9 @@ static int do_fpga_loadmk(cmd_tbl_t *cmdtp, int flag, int argc,
 			return CMD_RET_FAILURE;
 		}
 
-		/* get fpga subimage data address and length */
-		if (fit_image_get_data(fit_hdr, noffset, &fit_data,
-				       &data_size)) {
+		/* get fpga subimage/external data address and length */
+		if (fit_image_get_data_and_size(fit_hdr, noffset,
+					       &fit_data, &data_size)) {
 			puts("Fpga subimage data not found\n");
 			return CMD_RET_FAILURE;
 		}