arm/dt: msm8974: use batt_thm for battery presence detection

Use batt_therm for battery presence detection instead of
batt_id, due to spurious interrupts in during sleep caused
by the batt_id.

Change-Id: I638041af80c2b40b73ba4456293ce0d6dcb776c1
Signed-off-by: David Keitel <dkeitel@codeaurora.org>