qtbase: use v5.12.0 as base

* restore 0018-Fix-compile-issue-with-gcc-9.patch which is only in v5.12.1
* zlib detection got broken probably in:
  commit e80bf655e922e9864f8843b5e7bbb47019a6d95a
  Author: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
  Date:   Thu Dec 7 19:30:07 2017 +0100

    configure: verify header presence against sources

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/recipes-qt/qt5/qtbase/0010-linux-clang-Invert-conditional-for-defining-QT_SOCKL.patch b/recipes-qt/qt5/qtbase/0010-linux-clang-Invert-conditional-for-defining-QT_SOCKL.patch
index 0884863b..e984d315 100644
--- a/recipes-qt/qt5/qtbase/0010-linux-clang-Invert-conditional-for-defining-QT_SOCKL.patch
+++ b/recipes-qt/qt5/qtbase/0010-linux-clang-Invert-conditional-for-defining-QT_SOCKL.patch
@@ -1,4 +1,4 @@
-From 37dae545c6c5134b8c7aaac5e398cfec54349493 Mon Sep 17 00:00:00 2001
+From cb7f43dd24bc59baf1466b9f55c48b170c5912cf Mon Sep 17 00:00:00 2001
 From: Khem Raj <raj.khem@gmail.com>
 Date: Sun, 3 Sep 2017 09:44:48 -0700
 Subject: [PATCH] linux-clang: Invert conditional for defining QT_SOCKLEN_T