fix(drivers/marvell/comphy-cp110): fix error code in pcie power on
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 <84fc5b246d98b743737687ddff985e1cb7a72c1e@kernel.org>
Change-Id: I16cac81bbcbe2113e139722dc0e8fc2b85428d1b

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware