arm64: mvebu: Enable CONFIG_PHY_MARVELL in Armada7k/8k-DB defconfig

The Marvell PHY support is needed espescially for the A7040-DB with the
SGMII port (port 2). As without the marvell PHY driver configuration
for SGMII, ethernet won't work.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Stefan Chulski <stefanc@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Nadav Haklai <nadavh@marvell.com>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>

configs/mvebu_db-88f7040_defconfig

@@ -47,6 +47,7 @@ CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_PHY_MARVELL=y
 CONFIG_MVPP2=y
 CONFIG_PCI=y
 CONFIG_DM_PCI=y

configs/mvebu_db-88f8040_defconfig

@@ -47,6 +47,7 @@ CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_PHY_MARVELL=y
 CONFIG_MVPP2=y
 CONFIG_PCI=y
 CONFIG_DM_PCI=y