msm: ipa: Add support for per client lan statistics

Per client lan statistics feature requires fetching data
from IPA-Q6 and share it with user space application.
Make changes to provide ioctl-interface to interact with
IPA Q6 to get the per  client lan statistics.

Change-Id: If0af747cd86058eaa275170f42af1d9e93e81768
Acked-by: Abhishek Choubey <abchoube@qti.qualcomm.com>
Acked-by: Pooja Kumari <kumarip@qti.qualcomm.com>
Acked-by: Chaitanya Pratapa <cpratapa@qti.qualcomm.com>
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>
Signed-off-by: Utkarsh Saxena <usaxena@codeaurora.org>