soc: qcom: rq_stats: Pass correct cpu id to update_average_load function

Pass correct cpu number to update_average_load function
from cpufreq_transition_handler function. Also avoid div by zero
condition in update_average_load function.

Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>