cnss2: Handle properly for MHI sync power up timeout

For MHI sync power up, timeout means MHI power up has succeeded,
but timed out for firmware mission mode event. Hence make sure
the corresponding power up bit is set properly.

Change-Id: I8487f7bfba2499a10ecd2efebf6424e86a77e049
Signed-off-by: Yue Ma <yuem@codeaurora.org>