arm/dt: msm8974: Add power management devices for v2

Add devicetree support for power management devices for rev 2 of
MSM8974 chipset.

The new SAW rev2.1 has support for HFPLL be turned off from the Krait
SPM sequence. The rev 2.0 hardware would force PLL on when resuming even
if the PLL was turned off by s/w.

Change-Id: I653d425c4df58b1157d2753305ad2c5cc66eb93b
Signed-off-by: Praveen Chidambaram <pchidamb@codeaurora.org>
2 files changed