msm8226: Add overlay configuration

Add a new config flag as an overlay for msm8226 target.
For 8226, QcrilMsgTunnel app is not required to be started
during the boot up purely to address bootup memory
utilization of low-tier chipsets.

Change-Id: Id32aeea270b4750da524ee6c735bc6caddd76eb2
2 files changed