manta: power: set CPU boost on input to 500ms

Change-Id: I05743cb2fa0706b96e218e413460d6d1362cd03d
diff --git a/power/power_manta.c b/power/power_manta.c
index 7657ea4..aa200be 100644
--- a/power/power_manta.c
+++ b/power/power_manta.c
@@ -115,6 +115,8 @@
                 "90");
     sysfs_write("/sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay",
                 "140000");
+    sysfs_write("/sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration",
+                "500000");
 
     init_touchscreen_power_path(manta);
 }