UPSTREAM: clk: rockchip: add the tsadc clocks found on rk3228 SoCs

UPSTREAM: clk: rockchip: add the tsadc clocks found on rk3228 SoCs

This patch adds the needed clocks for rk3228 tsadc.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
(cherry picked from git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git
v4.8-clk/next commit a3cb9aa4bad3392e23c48e186714a1c96c7d0d6b)

Change-Id: Ie7328cc5de2e3909360e5655acb93d4f0eff025c
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>