[common] rework BitField and BitUtil, use concepts whenever possible (#4076)

test no regressions especially on Liiinux

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4076
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

src/hid_core/hidbus/ringcon.cpp

@@ -284,9 +284,9 @@ u8 RingController::GetCrcValue(const std::vector<u8>& data) const {
 }
 
 template <typename T>
+    requires std::is_trivially_copyable_v<T>
 u64 RingController::GetData(const T& reply, std::span<u8> out_data) const {
-    static_assert(std::is_trivially_copyable_v<T>);
-    const auto data_size = static_cast<u64>((std::min)(sizeof(reply), out_data.size()));
+    const auto data_size = u64((std::min)(sizeof(reply), out_data.size()));
     std::memcpy(out_data.data(), &reply, data_size);
     return data_size;
 }

src/hid_core/hidbus/ringcon.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -221,6 +224,7 @@ private:
 
     // Converts structs to an u8 vector equivalent
     template <typename T>
+        requires std::is_trivially_copyable_v<T>
     u64 GetData(const T& reply, std::span<u8> out_data) const;
 
     RingConCommands command{RingConCommands::Error};