ARM: dts: msm: increase VDD_APC1 CPR step quotient for msm8994v2

Increase the VDD_APC1 CPR step quotient from 7 to 12 on msm8994v2
in order to account for the larger quotient values output by the
newly utilized ring oscillator #4.  This ensures that excessive
numbers of alternating up and down CPR interrupts are not
triggered due to CPR being overly sensitive.

Change-Id: I277203f30201583ac0dab94508b11533953d220a
Signed-off-by: David Collins <collinsd@codeaurora.org>