dmaengine: ste_dma40: Supply 2 missing struct attribute descriptions

Fixes the following W=1 kernel build warning(s):

 drivers/dma/ste_dma40.c:398: warning: Function parameter or member 'dma_addr' not described in 'd40_lcla_pool'
 drivers/dma/ste_dma40.c:601: warning: Function parameter or member 'dma_parms' not described in 'd40_base'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Jonas Aaberg <jonas.aberg@stericsson.com>
Link: https://lore.kernel.org/r/20200714111546.1755231-7-lee.jones@linaro.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/ste_dma40.c

@@ -381,6 +381,7 @@ struct d40_desc {
  * struct d40_lcla_pool - LCLA pool settings and data.
  *
  * @base: The virtual address of LCLA. 18 bit aligned.
+ * @dma_addr: DMA address, if mapped
  * @base_unaligned: The orignal kmalloc pointer, if kmalloc is used.
  * This pointer is only there for clean-up on error.
  * @pages: The number of pages needed for all physical channels.
@@ -534,6 +535,7 @@ struct d40_gen_dmac {
  * mode" allocated physical channels.
  * @num_log_chans: The number of logical channels. Calculated from
  * num_phy_chans.
+ * @dma_parms: DMA parameters for the channel
  * @dma_both: dma_device channels that can do both memcpy and slave transfers.
  * @dma_slave: dma_device channels that can do only do slave transfers.
  * @dma_memcpy: dma_device channels that can do only do memcpy transfers.