kbuild: trivial - use tabs for code indent where possible

Imported from upstream linux kernel kconfig.

Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

Change-Id: Ieed948c6b9c5fc40c1f3d652df11fa70ec6e93a0
Original-Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Original-Signed-off-by: Michal Marek <mmarek@suse.cz>
Reviewed-on: http://review.coreboot.org/9308
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
diff --git a/util/kconfig/zconf.y b/util/kconfig/zconf.y
index 0653886..0f683cf 100644
--- a/util/kconfig/zconf.y
+++ b/util/kconfig/zconf.y
@@ -510,7 +510,7 @@
 	for_all_symbols(i, sym) {
 		if (sym_check_deps(sym))
 			zconfnerrs++;
-        }
+	}
 	if (zconfnerrs)
 		exit(1);
 	sym_set_change_count(1);