defconfig: Enable demux based on TSPPv1 in 8974-perf

Demux device (based on TSPPv1 HW) is required in 8974 platforms.
This change updates the msm8974-perf_defconfig to include the demux
device along with the modules it depends on, dvb-core and tspp.
The regular defconfig file has already been updated in a previous commit.

Change-Id: I20fdc516d34309bd20180229a0c251a45a1e991d
Signed-off-by: Liron Kuch <lkuch@codeaurora.org>
1 file changed