clk: Add Actions Semi OWL clock support

This commit adds Actions Semi OWL family base clock and S900 SoC
specific clock support. For S900 peripheral clock support, only UART
clock has been added for now.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index edb4ca5..18bf8a6 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -89,6 +89,7 @@
 source "drivers/clk/at91/Kconfig"
 source "drivers/clk/renesas/Kconfig"
 source "drivers/clk/mvebu/Kconfig"
+source "drivers/clk/owl/Kconfig"
 
 config ICS8N3QV01
 	bool "Enable ICS8N3QV01 VCXO driver"