* citra_qt: Build fixes for QT 6.8
Replace deprecated `stateChanged` function with `checkStateChanged` that was first introduced in QT 6.7.
* citra_qt: Use macros to detect QT version
* citra_qt: Group QT macro version checks together
Android 15 will allow OEMs to ship arm64-v8a devices with 16KiB page sizes. Devices that use this configuration will not be able to run existing apps that use native code. To be compatible with these devices, applications will need to rebuild all their native code to be 16KiB aligned, and rewrite any code which assumes a specific page size.
This commit sets `-DANDROID_SUPPORT_FLEXIBLE_PAGE_SIZES=ON` and updates `libadrenotools` to replace `PAGE_SIZE` with `getpagesize()` in order to dynamically determine a device's page size.
Replace deprecated `stateChanged` function with `checkStateChanged` that was first introduced in QT 6.7 but keep the old code to maintain compatibility with older versions of QT.
* renderer_vulkan: Remove vulkan prefix in SetObjectName
* renderer_vulkan: Rename renderpass cache to render manager
* It is no longer just a cache
* renderer_vulkan: Rewrite descriptor management
* Switch to batched vkUpdateDescriptorSets from cached descriptor sets with templates
* vk_master_semaphore: Remove waitable atomic
* These are buggy on some platforms and regular condition_variables are faster most of the time
* vk_texture_runtime.cpp: remove outdated references
* vk_render_manager: Minor cleanups and rename to RenderManager
* It is no longer just a renderpass cache
* Revert variable name change from render_manager back to renderpass_cache
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Co-authored-by: GPUCode <geoster3d@gmail.com>
