ARM: dts: msm: Enable wakeup capability of SPMI interrupts for SDM630

Remove "qcom,not-wakeup" flag from SPMI device node to allow
device wake-up via SPMI peripheral interrupts.

CRs-Fixed: 2031826
Change-Id: I457ed82e0d6cbf34bf490c50caeeddaac3970080
Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>