clk: Add ICS8N3QV01 driver

Add a driver for the ICS8N3QV01 Quad-Frequency Programmable VCXO.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index e05c607..0b4f385 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -21,6 +21,7 @@
 obj-$(CONFIG_CLK_UNIPHIER) += uniphier/
 obj-$(CONFIG_CLK_ZYNQ) += clk_zynq.o
 obj-$(CONFIG_CLK_ZYNQMP) += clk_zynqmp.o
+obj-$(CONFIG_ICS8N3QV01) += ics8n3qv01.o
 obj-$(CONFIG_MACH_PIC32) += clk_pic32.o
 obj-$(CONFIG_SANDBOX) += clk_sandbox.o
 obj-$(CONFIG_SANDBOX) += clk_sandbox_test.o