ARM: mxs: switch to common clk framework

It switches mxs clock support to common clk framework based drivers.

Signed-off-by: Shawn Guo <[email protected]>

drivers/clk/Makefile

@@ -2,3 +2,5 @@
 obj-$(CONFIG_CLKDEV_LOOKUP)	+= clkdev.o
 obj-$(CONFIG_COMMON_CLK)	+= clk.o clk-fixed-rate.o clk-gate.o \
 				   clk-mux.o clk-divider.o
+
+obj-$(CONFIG_ARCH_MXS)		+= mxs/