scsi: ufs: do not clear the DL layer timers

During power mode change, PACP_PWR_Req frame sends
PAPowerModeUserData parameters (and they are considered valid by device if
Flags[4] - UserDataValid bit is set in the same frame).
Currently we don't set these PAPowerModeUserData parameters and hardware
always sets UserDataValid bit which would clear all the DL layer timeout
values of the peer device after the power mode change.

This change sets the PAPowerModeUserData[0..2] to UniPro specification
recommended default values, in addition we are also setting the relevant
DME_LOCAL_* timer attributes as required by UFS HCI specification.

Change-Id: I5ff98c03144e6973848d2fa1bf2aafd7637025fb
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>