clk: tegra: cvb: Provide missing description for 'tegra_cvb_add_opp_table()'s align param

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

 drivers/clk/tegra/cvb.c:106: warning: Function parameter or member 'align' not described in 'tegra_cvb_add_opp_table'

Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210126124540.3320214-10-lee.jones@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/tegra/cvb.c

@@ -86,6 +86,7 @@ static int build_opp_table(struct device *dev, const struct cvb_table *table,
  * @dev: the struct device * for which the OPP table is built
  * @tables: array of CVB tables
  * @count: size of the previously mentioned array
+ * @align: parameters of the regulator step and offset
  * @process_id: process id of the HW module
  * @speedo_id: speedo id of the HW module
  * @speedo_value: speedo value of the HW module