cpufreq: interactive: turn boost_pulse off on boost off

Change-Id: I36fe217fa047d68ea90e78b12c7db4537ea8010b
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>

https://github.com/xboxfanj/android_kernel_htc_msm8974/commit/614ae00e97f5efa9bcff03e8c175e99b7b2a207b