fix(drivers/marvell/comphy-cp110): fix error code in pcie power on

Function polling_with_timeout() returns last value from polled register
on failure and zero on success. So set "ret" variable to error code
-ETIMEDOUT on error like it is done in other functions.

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I16cac81bbcbe2113e139722dc0e8fc2b85428d1b
1 file changed