[spirv] mark sampled image descriptor indices non-uniform (#3900)

fixes incorrect texture selection on vk when shaders use per-pixel descriptor indices, in line with #3898 so dynamic descs are no longer treated as uniform

also fixes TD;LTD spotty grass issue on SD not addressed by above pr

you can test out all the fixes here: https://git.eden-emu.dev/may/eden/src/branch/may/integrate-texture-descriptor-fixes

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3900
Reviewed-by: crueter <crueter@eden-emu.dev>

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -412,6 +412,8 @@ PipelineCache::PipelineCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
         .support_scaled_attributes = !device.MustEmulateScaledFormats(),
         .support_multi_viewport = device.SupportsMultiViewport(),
         .support_geometry_streams = device.AreTransformFeedbackGeometryStreamsSupported(),
+        .support_sampled_image_array_nonuniform_indexing =
+            device.IsSampledImageArrayNonUniformIndexingSupported(),
 
         .warp_size_potentially_larger_than_guest = device.IsWarpSizePotentiallyBiggerThanGuest(),