arm/dt: 8974-liquid: Configure pmic 8941 gpio 33 and 34

Choose Antenna #0 for WLAN for liquid 8974 device.
Need to define these gpios to prevent forbidden state when
both gpios have the same logical value ('0' & '0' or '1' & '1').
In that states we can't be sure what antenna is in use.

Change-Id: Ib1b280ede43a72658d543c0902789e3a3e135673
Signed-off-by: Alexander Lifshitz <califsh@codeaurora.org>