nvdisp_disp0: change drawing message log level from Warning to Trace

This is a leftover from the early yuzu days.
We shouldn't log every time when we are drawing by default, so let's change the log level to Trace.

src/core/hle/service/nvdrv/devices/nvdisp_disp0.cpp

@@ -25,7 +25,7 @@ void nvdisp_disp0::flip(u32 buffer_handle, u32 offset, u32 format, u32 width, u3
                         u32 stride, NVFlinger::BufferQueue::BufferTransformFlags transform,
                         const MathUtil::Rectangle<int>& crop_rect) {
     VAddr addr = nvmap_dev->GetObjectAddress(buffer_handle);
-    LOG_WARNING(Service,
+    LOG_TRACE(Service,
               "Drawing from address {:X} offset {:08X} Width {} Height {} Stride {} Format {}",
               addr, offset, width, height, stride, format);