configs: migrate CONFIG_PHY_AQUANTIA to Kconfig

The aquantia driver requires both CONFIG_PHY_GIGE and CONFIG_PHYLIB_10G.

Signed-off-by: Jeremy Gebben <jgebben@sweptlaser.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index f5821df..28f3ee3 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -66,6 +66,8 @@
 
 config PHY_AQUANTIA
 	bool "Aquantia Ethernet PHYs support"
+	select PHY_GIGE
+	select PHYLIB_10G
 
 config PHY_ATHEROS
 	bool "Atheros Ethernet PHYs support"