clk: sunxi: Implement UART resets

Implement UART resets for all relevant Allwinner SoC
clock drivers via ccu reset table.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/drivers/clk/sunxi/clk_a23.c b/drivers/clk/sunxi/clk_a23.c
index ebe8d00..854259b 100644
--- a/drivers/clk/sunxi/clk_a23.c
+++ b/drivers/clk/sunxi/clk_a23.c
@@ -38,6 +38,12 @@
 	[RST_BUS_OTG]		= RESET(0x2c0, BIT(24)),
 	[RST_BUS_EHCI]		= RESET(0x2c0, BIT(26)),
 	[RST_BUS_OHCI]		= RESET(0x2c0, BIT(29)),
+
+	[RST_BUS_UART0]		= RESET(0x2d8, BIT(16)),
+	[RST_BUS_UART1]		= RESET(0x2d8, BIT(17)),
+	[RST_BUS_UART2]		= RESET(0x2d8, BIT(18)),
+	[RST_BUS_UART3]		= RESET(0x2d8, BIT(19)),
+	[RST_BUS_UART4]		= RESET(0x2d8, BIT(20)),
 };
 
 static const struct ccu_desc a23_ccu_desc = {