ARM: OMAP4: PM: Add support for OMAP4 dpll api's

Most of the dpll api's from dpll.c are reused for OMAP4.
This patch does extend a few api's for OMAP4 support.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 551df72..10c0539 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -6,13 +6,14 @@
 obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o
 
 omap-2-3-common				= irq.o sdrc.o omap_hwmod.o
+omap-3-4-common				= dpll.o
 prcm-common				= prcm.o powerdomain.o
 clock-common				= clock.o clock_common_data.o clockdomain.o
 
 obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common)
 obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(prcm-common) $(clock-common) \
-			    dpll.o
-obj-$(CONFIG_ARCH_OMAP4) += prcm.o clock.o
+			    $(omap-3-4-common)
+obj-$(CONFIG_ARCH_OMAP4) += $(omap-3-4-common) prcm.o clock.o
 
 obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o