clk: sunxi: Add Allwinner H6 CLK driver

Add initial clock driver for Allwinner H6.

- Implement UART bus clocks via ccu_clk_gate table for
  H6, so it can accessed in common clk enable and disable
  functions from clk_sunxi.c
- Implement UART bus resets via ccu_reset table for H6,
  so it can accessed in common reset deassert and assert
  functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile
index fbd4352..794aa24 100644
--- a/drivers/clk/sunxi/Makefile
+++ b/drivers/clk/sunxi/Makefile
@@ -14,4 +14,5 @@
 obj-$(CONFIG_CLK_SUN8I_R40) += clk_r40.o
 obj-$(CONFIG_CLK_SUN8I_V3S) += clk_v3s.o
 obj-$(CONFIG_CLK_SUN8I_H3) += clk_h3.o
+obj-$(CONFIG_CLK_SUN50I_H6) += clk_h6.o
 obj-$(CONFIG_CLK_SUN50I_A64) += clk_a64.o