clk: rockchip: rk3368: mark the aclk_dmac_bus as critical clk

crypto and dmac share the same noc clk,
so mark the aclk_dmac_bus as critical clk.

Change-Id: Ib0b70bbed3fdefeab7b6f2b5f88350a416e66787
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>

drivers/clk/rockchip/clk-rk3368.c

@@ -883,6 +883,7 @@ static const char *const rk3368_critical_clocks[] __initconst = {
 	"pclk_ddrphy",
 	"pclk_ddrupctl",
 	"pmu_hclk_otg0",
+	"aclk_dmac_bus",
 };
 
 static void __iomem *rk3368_cru_base;