Refresh QtWebEngine patch for 16k page support from official Chromium commit

This refreshes the commit with the upstream Chromium commit data and
the upstream Qt references required for upstreaming the change.

qtwebengine-5.15-Backport-of-16k-page-support-on-aarch64.patch

@@ -1,8 +1,35 @@
-From 0908105c5a7fb5d3f0b644b37811f82934cccf60 Mon Sep 17 00:00:00 2001
-From: Yichao Yu <yyc1992@gmail.com>
-Date: Tue, 19 Jul 2022 23:58:46 -0400
-Subject: [PATCH] Backport of 16k page support on aarch64
+From 0e827b4f741e57538c24d90b63659dbdb0992cb0 Mon Sep 17 00:00:00 2001
+From: Jorrit Jongma <jorrit@jongma.org>
+Date: Tue, 12 Apr 2022 17:09:34 +0000
+Subject: [PATCH] [Backport] [PA] Support 16kb pagesize on Linux+ARM64
 
+This makes the system pagesize a run-time property.
+
+ARM64 supports 4kb, 16kb, and 64kb page sizes. Previously, only 4kb
+was supported by Chromium. This patch adds 16kb support, as is used
+for example by Asahi Linux on M1 Macs. The rare 64kb case is still
+not supported due to further changes needed to SlotSpanMetadata.
+
+The implementation follows the changes made to support run-time page
+size on macOS. On macOS, the required constants are conveniently
+injected before any code runs, while on Linux a function call is
+needed, complicating initialization.
+
+The new PageCharacteristics structure holds the page size and shift
+as std::atomic<int> which are initialized on first use.
+
+Bug: 1301788
+Change-Id: I8ceead40de53ba7a2ec248bd6ef46f2a521dd29c
+Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3545665
+Reviewed-by: Benoit Lize <lizeb@chromium.org>
+Reviewed-by: Mark Mentovai <mark@chromium.org>
+Commit-Queue: Mark Mentovai <mark@chromium.org>
+Cr-Commit-Position: refs/heads/main@{#991588}
+
+(adapted from commit a704c3a94179e6f3abb28f090d096ced72657d7c)
+
+Bug-Fedora: 2144200
+Task-number: QTBUG-108674
 ---
  .../address_space_randomization.h             | 15 ++++++
  .../page_allocator_constants.h                | 51 +++++++++++++++++-
@@ -341,5 +368,5 @@ index 71d63ba4146..a6d83626741 100644
  #else
  PAGE_ALLOCATOR_CONSTANTS_DECLARE_CONSTEXPR ALWAYS_INLINE int
 -- 
-2.37.0
+2.38.1