mhi: dev: uci: trigger a wake-up event if MHI device is wake capable

If MHI device is wake capable, we need to request a wake up event
to abort any pending system suspends so user space clients are
able to process incoming data.

CRs-Fixed: 2348867
Change-Id: Idfba240c8b7c5508a9dc8487d06fe121789164b3
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>