clk: sunxi: Add support for the A100/A133 CCU

The Allwinner A100 SoC has been around for a while, and has now seemingly
been replaced with its close sibling A133.

Add support for the CCU, as far as used by U-Boot proper. Linux has some
basic (clock and pinctrl) support for a while, so we can already use the
existing binding headers.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
diff --git a/drivers/clk/sunxi/clk_sunxi.c b/drivers/clk/sunxi/clk_sunxi.c
index 2ef4f45..e0765cb 100644
--- a/drivers/clk/sunxi/clk_sunxi.c
+++ b/drivers/clk/sunxi/clk_sunxi.c
@@ -122,6 +122,7 @@
 extern const struct ccu_desc h3_ccu_desc;
 extern const struct ccu_desc h6_ccu_desc;
 extern const struct ccu_desc h616_ccu_desc;
+extern const struct ccu_desc a100_ccu_desc;
 extern const struct ccu_desc h6_r_ccu_desc;
 extern const struct ccu_desc r40_ccu_desc;
 extern const struct ccu_desc v3s_ccu_desc;
@@ -215,6 +216,10 @@
 	{ .compatible = "allwinner,sun50i-h616-r-ccu",
 	  .data = (ulong)&h6_r_ccu_desc },
 #endif
+#ifdef CONFIG_CLK_SUN50I_A100
+	{ .compatible = "allwinner,sun50i-a100-ccu",
+	  .data = (ulong)&a100_ccu_desc },
+#endif
 #ifdef CONFIG_CLK_SUNIV_F1C100S
 	{ .compatible = "allwinner,suniv-f1c100s-ccu",
 	  .data = (ulong)&f1c100s_ccu_desc },