dmaengine: tegra210-adma: Fix spelling

Correct spelling of 'register' in Tegra210 ADMA driver.

Fixes: ded1f3db ("dmaengine: tegra210-adma: prepare for supporting newer Tegra chips")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/tegra210-adma.c

@@ -95,7 +95,7 @@ struct tegra_adma;
  * @global_int_clear: Register offset of DMA global interrupt clear.
  * @ch_req_tx_shift: Register offset for AHUB transmit channel select.
  * @ch_req_rx_shift: Register offset for AHUB receive channel select.
- * @ch_base_offset: Reister offset of DMA channel registers.
+ * @ch_base_offset: Register offset of DMA channel registers.
  * @ch_fifo_ctrl: Default value for channel FIFO CTRL register.
  * @ch_req_mask: Mask for Tx or Rx channel select.
  * @ch_req_max: Maximum number of Tx or Rx channels available.