cpufreq: pxa2xx: Add Kconfig entry

Add ability for PXA2xx CPUFreq to be compiled as a module or not at all.

Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 83a75dc..0f9a2c3 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -247,3 +247,11 @@
 	default y
 	help
 	  This adds the CPUFreq driver support for TEGRA SOCs.
+
+config ARM_PXA2xx_CPUFREQ
+	tristate "Intel PXA2xx CPUfreq driver"
+	depends on PXA27x || PXA25x
+	help
+	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
+
+	  If in doubt, say N.