cpufreq: powerpc: CBE_RAS: select CPU_FREQ_TABLE

CPUFreq driver of this platform uses APIs from freq_table.c and so must select
CPU_FREQ_TABLE.

Cc: linuxppc-dev@lists.ozlabs.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

drivers/cpufreq/Kconfig.powerpc

 config CPU_FREQ_CBE
 	tristate "CBE frequency scaling"
 	depends on CBE_RAS && PPC_CELL
+	select CPU_FREQ_TABLE
 	default m
 	help
 	  This adds the cpufreq driver for Cell BE processors.