libfdt: Add ALIGNMENT error string

The ALIGNMENT error was missing a string, leading to <unknown error>
being returned.

Signed-off-by: Georg Kotheimer <georg.kotheimer@kernkonzept.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

libfdt/fdt_strerror.c

@@ -39,6 +39,7 @@ static struct fdt_errtabent fdt_errtable[] = {
 	FDT_ERRTABENT(FDT_ERR_BADOVERLAY),
 	FDT_ERRTABENT(FDT_ERR_NOPHANDLES),
 	FDT_ERRTABENT(FDT_ERR_BADFLAGS),
+	FDT_ERRTABENT(FDT_ERR_ALIGNMENT),
 };
 #define FDT_ERRTABSIZE	((int)(sizeof(fdt_errtable) / sizeof(fdt_errtable[0])))