defconfig: fsm9010: Enable socket kernel config

Networking and unix domain sockets are required features in
fsm9010 targets.

Change-Id: I6f20daf6cca5b8f8a2d2df1c91510f48e6696d11
Acked-by: Kaushik Sikdar <ksikdar@qti.qualcomm.com>
Signed-off-by: Venkatesh Yadav Abbarapu <quicvenkat@codeaurora.org>