ARM: dts: msm: update LPM parameter values for 8916

PM driver takes LPM parameters as one of the input
and decides the best low power mode. Current LPM parameter values
are not optimal and this may lead to more power
consumption for APPS proc active usecases. This change tunes
the low power mode parameter values such as "latency",
"time overhead", "steady state power" and "energy overhead"
for 8916.

CRs-fixed: 667312
Change-Id: I8b25be26cf5639b02e31dbd4f03039b9c3e858cf
Signed-off-by: Anil kumar mamidala <amami@codeaurora.org>