livoxG1: Rename stagingBuffer=>assemblyBuffer

This is in preparation for re-using StagingBuffer to also serve
as the collation buffer that we'll use as the intermediate stage
for producing the final output mesh.

stimBuffApis/livoxGen1/ioUringAssemblyEngine.cpp

@@ -59,7 +59,7 @@ bool IoUringAssemblyEngine::setup()
 
 	// Get FrameAssemblyDesc from staging buffer
 	frameAssemblyDesc = static_cast<std::shared_ptr<FrameAssemblyDesc>>(
-		parent.stagingBuffer);
+		parent.assemblyBuffer);
 
 	if (!frameAssemblyDesc || frameAssemblyDesc->slots.empty())
 		{ return false; }
@@ -94,7 +94,7 @@ bool IoUringAssemblyEngine::setup()
 		{ goto cleanup; }
 
 	// Register staging buffer with io_uring for DMA-apt I/O
-	iov = parent.stagingBuffer.getIoUringRegisterIoVec();
+	iov = parent.assemblyBuffer.getIoUringRegisterIoVec();
 	ret = io_uring_register_buffers(&ring, &iov, 1);
 	if (ret < 0)
 		{ goto cleanup_ring; }