clk: rockchip: mark rk3399 GIC clocks as critical

We never want to kill the GIC.

Noticed when making other clock fixups, and seeing the newly-constructed
clock tree try to disable cpll, where we had this parent structure:

  aclk_gic <------\
                  |--- aclk_gic_pre <-- cpll <-- pll_cpll
  aclk_gic_noc <--/

Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c
index 291543f..145756c 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -1466,6 +1466,8 @@
 
 static const char *const rk3399_cru_critical_clocks[] __initconst = {
 	"aclk_cci_pre",
+	"aclk_gic",
+	"aclk_gic_noc",
 	"pclk_perilp0",
 	"pclk_perilp0",
 	"hclk_perilp0",