msm: mhi_dev: Add error check for M0 state

After MHI device reset, MMIO initialization and setting
the execution environment, the device expects to enter
M0 state to cache the host configuration. Add an error
check if device is not put in M0 state after the MHI
initialization sequence.

Change-Id: I7566af72c8093f7e5ab2f767c3d01029236b05e7
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>