Latest 1.18.1 won't launch with ARM Linux.

Flatpak run org.ppsspp.PPSSPP returns

```
~ $ flatpak run org.ppsspp.PPSSPP
VulkanMayBeAvailable: Device allowed ('SDL:Linux')
Vulkan library loaded ('libvulkan.so.1')
VulkanMayBeAvailable: Enumerating instance extensions
VulkanMayBeAvailable: Instance extension count: 24
VulkanMaybeAvailable: Instance extension found: VK_KHR_device_group_creation (00000001)
VulkanMaybeAvailable: Instance extension found: VK_KHR_display (00000017)
VulkanMaybeAvailable: Instance extension found: VK_KHR_external_fence_capabilities (00000001)
VulkanMaybeAvailable: Instance extension found: VK_KHR_external_memory_capabilities (00000001)
VulkanMaybeAvailable: Instance extension found: VK_KHR_external_semaphore_capabilities (00000001)
VulkanMaybeAvailable: Instance extension found: VK_KHR_get_display_properties2 (00000001)
VulkanMaybeAvailable: Instance extension found: VK_KHR_get_physical_device_properties2 (00000002)
VulkanMaybeAvailable: Instance extension found: VK_KHR_get_surface_capabilities2 (00000001)
VulkanMaybeAvailable: Instance extension found: VK_KHR_surface (00000019)
VulkanMaybeAvailable: Instance extension found: VK_KHR_surface_protected_capabilities (00000001)
VulkanMaybeAvailable: Instance extension found: VK_KHR_wayland_surface (00000006)
VulkanMaybeAvailable: Instance extension found: VK_KHR_xcb_surface (00000006)
VulkanMaybeAvailable: Instance extension found: VK_KHR_xlib_surface (00000006)
VulkanMaybeAvailable: Instance extension found: VK_EXT_acquire_drm_display (00000001)
VulkanMaybeAvailable: Instance extension found: VK_EXT_acquire_xlib_display (00000001)
VulkanMaybeAvailable: Instance extension found: VK_EXT_debug_report (0000000a)
VulkanMaybeAvailable: Instance extension found: VK_EXT_debug_utils (00000002)
VulkanMaybeAvailable: Instance extension found: VK_EXT_direct_mode_display (00000001)
VulkanMaybeAvailable: Instance extension found: VK_EXT_display_surface_counter (00000001)
VulkanMaybeAvailable: Instance extension found: VK_EXT_headless_surface (00000001)
VulkanMaybeAvailable: Instance extension found: VK_EXT_surface_maintenance1 (00000001)
VulkanMaybeAvailable: Instance extension found: VK_EXT_swapchain_colorspace (00000005)
VulkanMaybeAvailable: Instance extension found: VK_KHR_portability_enumeration (00000001)
VulkanMaybeAvailable: Instance extension found: VK_LUNARG_direct_driver_loading (00000001)
VulkanMayBeAvailable: Calling vkCreateInstance
VulkanMayBeAvailable: Vulkan test instance created successfully.
VulkanMayBeAvailable: Eligible device found: 'Turnip Adreno (TM) 630'
VulkanMayBeAvailable: Ineligible device found and ignored: 'llvmpipe (LLVM 19.1.7, 128 bits)'
VulkanMayBeAvailable: Found working Vulkan API!
VulkanMayBeAvailable: Destroying instance
DEBUG: Vulkan might be available.
Info: We compiled against SDL version 2.30.12 and we are linking against SDL version 2.30.12. :)
ThreadManager::Init(compute threads: 8, all: 16)
13:38:084 Core/Config.cpp:373 I[G3D]: Longest display side: 780 pixels. Choosing scale 1
13:38:088 UI/NativeApp.cpp:320 E[LOADER]: Failed graphics backends: OPENGL,OPENGL,OPENGL,OPENGL,OPENGL,OPENGL,OPENGL,OPENGL,OPENGL,OPENGL,OPENGL,OPENGL,OPENGL
Plugin "GTK3 plugin" uses conflicting symbol "png_free".
```

And the app does not start. Worked fine with the old release.
Fails also when graphicsbackend is set to Vulkan in ppsspp.ini.