cpufreq: blackfin: move cpufreq driver to drivers/cpufreq

This patch moves cpufreq driver of BLACKFIN architecture to drivers/cpufreq.
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Acked-by: NSteven Miao <realmz6@gmail.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

arch/blackfin/mach-common/Makefile

@@ -10,7 +10,6 @@ obj-$(CONFIG_PM)          += pm.o
 ifneq ($(CONFIG_BF60x),y)
 obj-$(CONFIG_PM)	  += dpmc_modes.o
 endif
-obj-$(CONFIG_CPU_FREQ)    += cpufreq.o
 obj-$(CONFIG_CPU_VOLTAGE) += dpmc.o
 obj-$(CONFIG_SMP)         += smp.o
 obj-$(CONFIG_BFIN_KERNEL_CLOCK) += clocks-init.o

drivers/cpufreq/Makefile

@@ -78,3 +78,4 @@ obj-$(CONFIG_CPU_FREQ_MAPLE)		+= maple-cpufreq.o
 ##################################################################################
 # Other platform drivers
 obj-$(CONFIG_AVR32_AT32AP_CPUFREQ)	+= at32ap-cpufreq.o
+obj-$(CONFIG_BLACKFIN)			+= blackfin-cpufreq.o