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/0002-musl-don-t-use-pvalloc-as-it-s-not-available-on-musl.patch b/recipes-qt/qt5/qtwebengine/0002-musl-don-t-use-pvalloc-as-it-s-not-available-on-musl.patch
index 07092012..96c9d101 100644
--- a/recipes-qt/qt5/qtwebengine/0002-musl-don-t-use-pvalloc-as-it-s-not-available-on-musl.patch
+++ b/recipes-qt/qt5/qtwebengine/0002-musl-don-t-use-pvalloc-as-it-s-not-available-on-musl.patch
@@ -1,4 +1,4 @@
-From b3125c1b3f32915aa80acf58a9d1eeab4e260b17 Mon Sep 17 00:00:00 2001
+From cdebd3f7775cfae7ac797774c63478d55d5b60ea Mon Sep 17 00:00:00 2001
 From: Samuli Piippo <samuli.piippo@qt.io>
 Date: Tue, 12 Dec 2017 16:06:14 +0200
 Subject: [PATCH] musl: don't use pvalloc as it's not available on musl