clk: pxa: add pxa3xx clock driver

Move pxa25x clock drivers from arch/arm/mach-pxa to driver/clk.
In the move :
 - convert to new clock framework legacy clocks
 - provide clocks as before for platform data based boards
 - provide clocks through devicetree with clk-pxa-dt

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
diff --git a/drivers/clk/pxa/Makefile b/drivers/clk/pxa/Makefile
index 38e9153..38e37bf 100644
--- a/drivers/clk/pxa/Makefile
+++ b/drivers/clk/pxa/Makefile
@@ -1,3 +1,4 @@
 obj-y				+= clk-pxa.o
 obj-$(CONFIG_PXA25x)		+= clk-pxa25x.o
 obj-$(CONFIG_PXA27x)		+= clk-pxa27x.o
+obj-$(CONFIG_PXA3xx)		+= clk-pxa3xx.o