configs: am64x_evm_a53_defconfig: Enable DP83867 PHY driver

AM64x GP and SK EVM have DP83867 PHY connected to CPSW external port0.
Enable the driver in order to use ethernet at U-Boot prompt.
CONFIG_PHY_TI is selected by CONFIG_PHY_TI_DP83867 and thus can be dropped.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/configs/am64x_evm_a53_defconfig b/configs/am64x_evm_a53_defconfig
index 08bb8af..304f5b4 100644
--- a/configs/am64x_evm_a53_defconfig
+++ b/configs/am64x_evm_a53_defconfig
@@ -75,6 +75,7 @@
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_PHY_TI=y
+CONFIG_PHY_TI_DP83867=y
 CONFIG_PHY_FIXED=y
 CONFIG_DM_ETH=y
 CONFIG_TI_AM65_CPSW_NUSS=y