refactor(drivers/marvell/comphy-3700): simplify usage of indirect access on lane2

For code cleanup add two helper functions comphy_sata_set_indirect() and
comphy_usb_set_indirect() for SATA and USB 3.0 modes and remove additional
'mode' argument which is not needed anymore.

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I23146f569db318dbaed5d411d7d175abf6efff85
1 file changed