clk: Versatile Express clock generators ("osc") driver

This driver provides a common clock framework hardware driver
for Versatile Express clock generators (a.k.a "osc") controlled
via the config bus.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
diff --git a/drivers/clk/versatile/Makefile b/drivers/clk/versatile/Makefile
index c0a0f64..1e49a7a 100644
--- a/drivers/clk/versatile/Makefile
+++ b/drivers/clk/versatile/Makefile
@@ -2,3 +2,4 @@
 obj-$(CONFIG_ICST)		+= clk-icst.o
 obj-$(CONFIG_ARCH_INTEGRATOR)	+= clk-integrator.o
 obj-$(CONFIG_ARCH_REALVIEW)	+= clk-realview.o
+obj-$(CONFIG_VEXPRESS_CONFIG)	+= clk-vexpress-osc.o