Emulator

Environment:
Windows Server 2016 + VS2019 latest version + dolphin master branch latest srouce code b5d9756.

Description:
Dolphin failed to build due to warning C4267. Could you help have a look about this issue? Thanks in advance!

Steps to reproduce the behavior:

1. git clone https://github.com/dolphin-emu/dolphin.git D:\Dolphin\src
2. git submodule init
3. git submodule update --recursive
4. Open a VS 2019 x64 command prompt and browse to D:\Dolphin\src
5. msbuild /m /p:Platform=x64 /p:Configuration=Release /p:WindowsTargetPlatformVersion=10.0.18362.0 dolphin-emu.sln /t:Dolphin

Actual result:
F:\gitP\dolphin-emu\dolphin\Source\Core\DiscIO\WIABlob.cpp(449,1): error C2220: the following warning is treated as an error
std::max(1, chunk_size / VolumeWii::GROUP_DATA_SIZE)))
^
F:\gitP\dolphin-emu\dolphin\Source\Core\DiscIO\WIABlob.cpp(424): note: while compiling class template member function 'bool DiscIO::WIARVZFileReader::ReadWiiDecrypted(u64,u64,u8 *,u64)'
{
F:\gitP\dolphin-emu\dolphin\Source\Core\DiscIO\WIABlob.cpp(2015): note: see reference to class template instantiation 'DiscIO::WIARVZFileReader' being compiled
const auto convert = rvz ? RVZFileReader::Convert : WIAFileReader::Convert;
F:\gitP\dolphin-emu\dolphin\Source\Core\DiscIO\WIABlob.cpp(449,1): warning C4267: 'argument': conversion from 'size_t' to 'u32', possible loss of data
std::max(1, chunk_size / VolumeWii::GROUP_DATA_SIZE)))