ARM: dts: msm: modify sound card properties for QCS404 Turbox C404

Set property qcom,wcn-btfm to zero in device tree because no WCN is
mounted on QCS404 Turbox C404 board.

Change-Id: Iac0d6719722b263e4485e2f018e69bfd5d5ab17d
Signed-off-by: Xiao Li <xiaolee@codeaurora.org>