ARM: dts: msm: configure MHI EFS device as a wake capable device for kona

EFS channel transfer is time sensitive that needs to be
processed before any system suspends. Therefore, configure it as
a wake-up channel.

CRs-Fixed: 2493547
Change-Id: Ie5c65cf20009d1b1d2e2a6e4d1330112a644f0e0