imx: ventana: ignore EEPROM config when checking for NAND support

EEPROM bits no longer indicate support for NAND so instead use
hard-coded value from board config struct.
Signed-off-by: NTim Harvey <tharvey@gateworks.com>

board/gateworks/gw_ventana/gw_ventana.c

@@ -1017,7 +1017,7 @@ int ft_board_setup(void *blob, struct bd_info *bd)
 		return 0;
 	}
 
-	if (test_bit(EECONFIG_NAND, info->config)) {
+	if (gpio_cfg[board_type].nand) {
 		/* Update partition nodes using info from mtdparts env var */
 		puts("   Updating MTD partitions...\n");
 		fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));