clk: rockchip: Demote kernel-doc abuses to standard comment blocks in plls

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

 drivers/clk/rockchip/clk-pll.c:104: warning: Function parameter or member 'i' not described in 'RK3036_PLLCON'
 drivers/clk/rockchip/clk-pll.c:365: warning: Function parameter or member 'nr' not described in 'RK3066_PLL_RESET_DELAY'
 drivers/clk/rockchip/clk-pll.c:584: warning: Function parameter or member 'i' not described in 'RK3399_PLLCON'

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Xing Zheng <zhengxing@rock-chips.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210120093040.1719407-4-lee.jones@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

drivers/clk/rockchip/clk-pll.c

@@ -97,7 +97,7 @@ static int rockchip_pll_wait_lock(struct rockchip_clk_pll *pll)
 	return ret;
 }
 
-/**
+/*
  * PLL used in RK3036
  */
 
@@ -358,7 +358,7 @@ static const struct clk_ops rockchip_rk3036_pll_clk_ops = {
 	.init = rockchip_rk3036_pll_init,
 };
 
-/**
+/*
  * PLL used in RK3066, RK3188 and RK3288
  */
 
@@ -577,7 +577,7 @@ static const struct clk_ops rockchip_rk3066_pll_clk_ops = {
 	.init = rockchip_rk3066_pll_init,
 };
 
-/**
+/*
  * PLL used in RK3399
  */