clk: tegra: Remove CLK_IS_ROOT

This flag is a no-op now. Remove usage of the flag.

Acked-by: Rhyland Klein <rklein@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/drivers/clk/tegra/clk-tegra-fixed.c b/drivers/clk/tegra/clk-tegra-fixed.c
index da0b594..d64ec7a 100644
--- a/drivers/clk/tegra/clk-tegra-fixed.c
+++ b/drivers/clk/tegra/clk-tegra-fixed.c
@@ -52,8 +52,7 @@
 		return -EINVAL;
 	}
 
-	osc = clk_register_fixed_rate(NULL, "osc", NULL, CLK_IS_ROOT,
-				      *osc_freq);
+	osc = clk_register_fixed_rate(NULL, "osc", NULL, 0, *osc_freq);
 
 	dt_clk = tegra_lookup_dt_id(tegra_clk_clk_m, clks);
 	if (!dt_clk)
@@ -88,8 +87,7 @@
 	/* clk_32k */
 	dt_clk = tegra_lookup_dt_id(tegra_clk_clk_32k, tegra_clks);
 	if (dt_clk) {
-		clk = clk_register_fixed_rate(NULL, "clk_32k", NULL,
-					CLK_IS_ROOT, 32768);
+		clk = clk_register_fixed_rate(NULL, "clk_32k", NULL, 0, 32768);
 		*dt_clk = clk;
 	}