ARM: dts: msm8994: remove IBB bias active

IBB module is the master and controls LAB if bias
active is not enabled. Remove bias active to make
IBB synchronously control LAB.

Change-Id: Idb3b25fd48171cbdb411d32703463e63b20bd8c2
Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>