ARM: dts: msm: Enable SSPHY MPM interrupt mapping for 9630/8994

SSUSB PHY can generate interrupt in XO shutdown when SSUSB bus
resume is being initiated by host. Hence add MPM pin and power
event IRQ related dts entries which are connected with SSUSB PHY.

CRs-Fixed: 727450
Change-Id: I91e8338fd101f9f2e416e3485272c8f0c9664f3e
Signed-off-by: Mayank Rana <mrana@codeaurora.org>