For case where CMD_FPGA_LOADMK is enabled and GZIP disable.
Warning log:
common/built-in.o: In function `do_fpga':
/mnt/disk/u-boot/common/cmd_fpga.c:218: undefined reference to `gunzip'
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
 
                                comp = image_get_comp(hdr);
                                if (comp == IH_COMP_GZIP) {
+#if defined(CONFIG_GZIP)
                                        ulong image_buf = image_get_data(hdr);
                                        data = image_get_load(hdr);
                                        ulong image_size = ~0UL;
                                                return 1;
                                        }
                                        data_size = image_size;
+#else
+                                       puts("Gunzip image is not supported\n");
+                                       return 1;
+#endif
                                } else {
                                        data = (ulong)image_get_data(hdr);
                                        data_size = image_get_data_size(hdr);