ARM: dts: msm: Correct ADC interrupt argument for PMI632

Interrupt argument is corrected to point to right
peripheral. Without it, interrupt is not triggered
for PMI632 ADC conversion, leading to delay in
conversion time.

Change-Id: Iaf065a2fc69012f55bb3b496c3822ba2e74d34e4
Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>