fix(drivers/marvell/comphy-3700): configure phy selector also for PCIe

The mvebu_a3700_comphy_pcie_power_on() function does not configure the
PHY selector explicitly, it relies on the register default value.

Configure the PHY selector just in case someone changed the default
value.

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I54048b4bb7a5eced36f7fe6592ebe108f978fff0
1 file changed