phy: marvell: cp110: remove both phy and pipe selector configuration

Now the comphy configuration is handled in atf, therefore there is no
need to configure phy or pipe selector in u-boot, it is configured by
atf for each particular pair: lane and mode.

Change-Id: I0bebf8d5ff66dbeb6bf9ef90876195938a8eb705
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Reviewed-by: Igal Liberman <igall@marvell.com>