interconnect: qcom: sdm660: Fix kerneldoc warning

Fix the following warning:

sdm660.c:191:warning: Function parameter or member 'regmap'
	not described in 'qcom_icc_provider'

Link: https://lore.kernel.org/r/20210401094714.29075-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>

drivers/interconnect/qcom/sdm660.c

@@ -179,6 +179,7 @@ static const struct clk_bulk_data bus_mm_clocks[] = {
  * @bus_clks: the clk_bulk_data table of bus clocks
  * @num_clks: the total number of clk_bulk_data entries
  * @is_bimc_node: indicates whether to use bimc specific setting
+ * @regmap: regmap for QoS registers read/write access
  * @mmio: NoC base iospace
  */
 struct qcom_icc_provider {