defconfig: kona: Enable sockev netlink messages

Enable compilation of netlink socket events.
Required for power management features.

CRs-Fixed: 626021
Change-Id: Iea7008c895b5691e1bcfd99269c4a0fbd829f92c
Acked-by: Manoj Basapathi <manojbm@qti.qualcomm.com>
Signed-off-by: Devi Sandeep Endluri V V <dendluri@codeaurora.org>