mhi: controller: force MHI reset before power up

It is not guaranteed for external modem to go through a cold reset
during initial power up. Check MHI state prior to power up. If
device in an error state, trigger a MHI reset prior to power up.

CRs-Fixed: 2347210
Change-Id: I7c9eb63c2c1245c15d8fa76bac29fa40e5f269c1
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>