system: Adding setprop entries for tcp delayed ack for Wifi & LTE

TCP delayed ack settings are expected to be modified when the
Wifi or LTE connection is established and the configurations
will be reverted back when the Wifi connection is terminated.
The change also modifies the /sys/kernel/ipv4/tcp_delack_seg
and /sys/kernel/ipv4/tcp_use_useconfig file owner to "system"

Change-Id: I754abdbcb140c8aece40d3ad70c85e6363bfb330
CRs-Fixed: 628139
NFC: enable Smart Card Service assd device driver

Set permissions for Android Seek service.

Change-Id: I21215da48645159672b067179497c9adfc2a36dd
qcom/common: Added O_NOFOLLOW to avoid follow the symlink

open system call is added with NOFOLLOW flag

Change-Id: I402643635e3ee11b3ac5df63c3b71a9fd6f0d2db
Merge "NFC: enable Smart Card Service assd device driver"
Merge "qcom/common: Added O_NOFOLLOW to avoid follow the symlink"
Merge "system: Adding setprop entries for tcp delayed ack for Wifi & LTE"
security: Add appropriate permission for PFT driver

Update the permissions for PFT driver so that only apps
with drmrpc group permission can open it.

Change-Id: Id985234cb62ac34bc92875618ff79dc9d8bc8ad9
Merge "security: Add appropriate permission for PFT driver"
sec_config: Allow sensors group process to QMI Sensor services

Enable Sensors QMI services for sensors process groups.

CRs-Fixed: 431081

Change-Id: Ibbdb0e07d9497e1809e7ef817e8400d4a9e4f8c1
Merge "sec_config: Allow sensors group process to QMI Sensor services"