cpufreq: conservative: Reduce LATENCY_MULTIPLIER to 500

This changes the default sampling_rate from 100 msec to 50 msec on Exynos

DO NOT use this patch directly without testing and understanding the code
on any arch that has a default sampling_rate other than 100000 (100 msec)

Signed-off-by: Andrew Dodd <atd7@cornell.edu>

drivers/cpufreq/cpufreq_conservative.c

@@ -46,7 +46,7 @@
 
 static unsigned int min_sampling_rate;
 
-#define LATENCY_MULTIPLIER			(1000)
+#define LATENCY_MULTIPLIER			(500)
 #define MIN_LATENCY_MULTIPLIER			(100)
 #define DEF_SAMPLING_DOWN_FACTOR		(1)
 #define MAX_SAMPLING_DOWN_FACTOR		(10)