clk: sunxi: Implement UART clocks

Implement UART clocks for all Allwinner SoC
clock drivers via ccu clock gate table.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/drivers/clk/sunxi/clk_a64.c b/drivers/clk/sunxi/clk_a64.c
index eb0a45d..63424a9 100644
--- a/drivers/clk/sunxi/clk_a64.c
+++ b/drivers/clk/sunxi/clk_a64.c
@@ -19,6 +19,12 @@
 	[CLK_BUS_OHCI0]		= GATE(0x060, BIT(28)),
 	[CLK_BUS_OHCI1]		= GATE(0x060, BIT(29)),
 
+	[CLK_BUS_UART0]		= GATE(0x06c, BIT(16)),
+	[CLK_BUS_UART1]		= GATE(0x06c, BIT(17)),
+	[CLK_BUS_UART2]		= GATE(0x06c, BIT(18)),
+	[CLK_BUS_UART3]		= GATE(0x06c, BIT(19)),
+	[CLK_BUS_UART4]		= GATE(0x06c, BIT(20)),
+
 	[CLK_USB_PHY0]		= GATE(0x0cc, BIT(8)),
 	[CLK_USB_PHY1]		= GATE(0x0cc, BIT(9)),
 	[CLK_USB_HSIC]		= GATE(0x0cc, BIT(10)),