clk: si5{14,351,70}: Remove CLK_IS_ROOT

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

Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Cc: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/drivers/clk/clk-si514.c b/drivers/clk/clk-si514.c
index 6af7dce..ceef25b 100644
--- a/drivers/clk/clk-si514.c
+++ b/drivers/clk/clk-si514.c
@@ -313,7 +313,7 @@
 		return -ENOMEM;
 
 	init.ops = &si514_clk_ops;
-	init.flags = CLK_IS_ROOT;
+	init.flags = 0;
 	init.num_parents = 0;
 	data->hw.init = &init;
 	data->i2c_client = client;