[*] basic in-house cpp linting (#4039)

- add `#pragma once` to remainder files
- "correcter" defines (ANDROID), see https://groups.google.com/g/android-ndk/c/cf9_f1SLXls
- extra miscelly fixups

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

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4039
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: crueter <crueter@eden-emu.dev>

src/video_core/gpu_logging/freedreno_debug.cpp

@@ -1,7 +1,7 @@
 // SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
-#ifdef ANDROID
+#ifdef __ANDROID__
 
 #include "video_core/gpu_logging/freedreno_debug.h"
 #include "common/logging.h"
@@ -49,4 +49,4 @@ std::string FreedrenoDebugger::GetBreadcrumbs() {
 
 } // namespace GPU::Logging::Freedreno
 
-#endif // ANDROID
+#endif // __ANDROID__

src/video_core/gpu_logging/freedreno_debug.h

@@ -3,7 +3,7 @@
 
 #pragma once
 
-#ifdef ANDROID
+#ifdef __ANDROID__
 
 #include <string>
 
@@ -29,4 +29,4 @@ private:
 
 } // namespace GPU::Logging::Freedreno
 
-#endif // ANDROID
+#endif // __ANDROID__