RDMA/hw/i40iw/i40iw_pble: Provide description for 'dev' and fix formatting issues

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

 drivers/infiniband/hw/i40iw/i40iw_pble.c:60: warning: Function parameter or member 'dev' not described in 'i40iw_destroy_pble_pool'
 drivers/infiniband/hw/i40iw/i40iw_pble.c:120: warning: Function parameter or member 'pble_rsrc' not described in 'get_sd_pd_idx'
 drivers/infiniband/hw/i40iw/i40iw_pble.c:120: warning: Function parameter or member 'idx' not described in 'get_sd_pd_idx'

Link: https://lore.kernel.org/r/20210118223929.512175-10-lee.jones@linaro.org
Cc: Faisal Latif <faisal.latif@intel.com>
Cc: Shiraz Saleem <shiraz.saleem@intel.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/i40iw/i40iw_pble.c

@@ -54,6 +54,7 @@ static void i40iw_free_vmalloc_mem(struct i40iw_hw *hw, struct i40iw_chunk *chun
 
 /**
  * i40iw_destroy_pble_pool - destroy pool during module unload
+ * @dev: i40iw_sc_dev struct
  * @pble_rsrc:	pble resources
  */
 void i40iw_destroy_pble_pool(struct i40iw_sc_dev *dev, struct i40iw_hmc_pble_rsrc *pble_rsrc)
@@ -112,8 +113,8 @@ enum i40iw_status_code i40iw_hmc_init_pble(struct i40iw_sc_dev *dev,
 
 /**
  * get_sd_pd_idx -  Returns sd index, pd index and rel_pd_idx from fpm address
- * @ pble_rsrc:	structure containing fpm address
- * @ idx: where to return indexes
+ * @pble_rsrc:	structure containing fpm address
+ * @idx: where to return indexes
  */
 static inline void get_sd_pd_idx(struct i40iw_hmc_pble_rsrc *pble_rsrc,
 				 struct sd_pd_idx *idx)