arm: baltos: migrate Ethernet PHYs configuration to Kconfig

Remove CONFIG_PHY_ATHEROS and CONFIG_PHY_SMSC from defconfig
and select them in Kconfig.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/am335x_baltos_defconfig b/configs/am335x_baltos_defconfig
index 74fd487..05d41ae 100644
--- a/configs/am335x_baltos_defconfig
+++ b/configs/am335x_baltos_defconfig
@@ -50,6 +50,8 @@
 CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
 CONFIG_SYS_NAND_U_BOOT_OFFS=0x00080000
 CONFIG_PHY_ADDR_ENABLE=y
+CONFIG_PHY_ATHEROS=y
+CONFIG_PHY_SMSC=y
 CONFIG_MII=y
 CONFIG_DRIVER_TI_CPSW=y
 CONFIG_SPI=y
diff --git a/include/configs/baltos.h b/include/configs/baltos.h
index 7b5f652..ccbdc0a 100644
--- a/include/configs/baltos.h
+++ b/include/configs/baltos.h
@@ -257,10 +257,6 @@
 #define CONFIG_AM335X_USB1
 #define CONFIG_AM335X_USB1_MODE MUSB_OTG
 
-/* Network. */
-#define CONFIG_PHY_SMSC
-#define CONFIG_PHY_ATHEROS
-
 /* NAND support */
 #ifdef CONFIG_NAND
 #define GPMC_NAND_ECC_LP_x8_LAYOUT	1