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
diff --git a/drivers/marvell/comphy/phy-comphy-3700.c b/drivers/marvell/comphy/phy-comphy-3700.c
index 0ad14a8..a3e414c 100644
--- a/drivers/marvell/comphy/phy-comphy-3700.c
+++ b/drivers/marvell/comphy/phy-comphy-3700.c
@@ -815,6 +815,12 @@
 
 	debug_enter();
 
+	/* Configure phy selector for PCIe */
+	ret = mvebu_a3700_comphy_set_phy_selector(comphy_index, comphy_mode);
+	if (ret) {
+		return ret;
+	}
+
 	/* 1. Enable max PLL. */
 	reg_set16(LANE_CFG1_ADDR(PCIE) + COMPHY_SD_ADDR,
 		  USE_MAX_PLL_RATE_EN, USE_MAX_PLL_RATE_EN);