qtwebengine: refresh the patches to apply

* 4 musl patches didn't apply at all
* 0015-chromium-musl-include-asm-generic-ioctl.h-for-TCGETS.patch is
  dropped, because whole chromium/device/serial/serial_io_handler_posix.cc
  was removed in upgrade to 73:
  commit 38a9a29f4f9436cace7f0e7abf9c586057df8a4e
  Author: Allan Sandfeld Jensen <allan.jensen@qt.io>
  Date:   Wed Feb 13 16:23:34 2019 +0100
  Subject: BASELINE: Update Chromium to 73.0.3683.37

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

1 files changed, 1 insertions, 1 deletions

diff --git a/recipes-qt/qt5/qtwebengine/chromium/0018-chromium-musl-pread-pwrite.patch b/recipes-qt/qt5/qtwebengine/chromium/0018-chromium-musl-pread-pwrite.patch
index 4483ab1c..3d041d8a 100644
--- a/recipes-qt/qt5/qtwebengine/chromium/0018-chromium-musl-pread-pwrite.patch
+++ b/recipes-qt/qt5/qtwebengine/chromium/0018-chromium-musl-pread-pwrite.patch
@@ -1,4 +1,4 @@
-From d32ababfc7cfe3783c7600474487fba1ba4b805e Mon Sep 17 00:00:00 2001
+From f446867c2a65d20a62caf69248b48465b58d4046 Mon Sep 17 00:00:00 2001
 From: Khem Raj <raj.khem@gmail.com>
 Date: Sun, 23 Dec 2018 16:58:04 -0800
 Subject: [PATCH] chromium: musl: pread pwrite