bacon: Enable NET_KEY & NETFILTER_XT_TARGET_TCPMSS

IPsec VPN requires PF_KEYv2 socket to work,
so enable it.

TCPMSS patching is also required after the VPN is
connected, otherwise large TCP packets may get dropped.

Change-Id: I758fa9b7779395fcc5cb52f8561ac28b09715535
Merge branch 'cm-11.0' into ak-11.0-nightly
ak_bacon_defconfig: enable NET_KEY and TARGET_TCPMSS
cpufreq: cpu-boost: Export cpu boost status

* This will help hotplug drivers to know boost status
  of CPU and act accordingly.

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>