UPSTREAM: clk: rockchip: Add support for multiple clock providers

UPSTREAM: clk: rockchip: Add support for multiple clock providers

There are need to support Multi-CRUs probability in future, but
it is not supported on the current Rockchip Clock Framework.

Therefore, this patch add support a provider as the parameter
handler when we call the clock register functions for per CRU.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
(cherry picked from git.kernel.org mmind/linux-rockchip.git
v4.7-clk/next commit d509ddf2e57c99ae760d1a289b85f1e0d729f864)

Conflicts:

	drivers/clk/rockchip/clk-rk3036.c
	drivers/clk/rockchip/clk-rk3188.c
	drivers/clk/rockchip/clk-rk3228.c
	drivers/clk/rockchip/clk-rk3366.c
[zx: keep calling clk_register_fixed_factor previouslly, and there
is no rk3228 clock controller, add support for clk-rk3366 manually,
because it is not in the upstream codes.]

Change-Id: I94976f38fb6edd88f334479d6e44fef5bcdfc16a
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>