docs: dma-api: Fix description of the sync_sg API

Fix the description of the parameters to dma_sync_sg*. They should be the
same as the parameters to dma_map_sg(), not dma_map_single().
Signed-off-by: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20231103162120.3474026-1-bjohannesmeyer@gmail.com>

Documentation/core-api/dma-api.rst

@@ -448,7 +448,7 @@ DMA address entries returned.
 
 Synchronise a single contiguous or scatter/gather mapping for the CPU
 and device. With the sync_sg API, all the parameters must be the same
-as those passed into the single mapping API. With the sync_single API,
+as those passed into the sg mapping API. With the sync_single API,
 you can use dma_handle and size parameters that aren't identical to
 those passed into the single mapping API to do a partial sync.