net: ravb: Drop reset GPIO handling in favor of common code

The common code is now capable of handling reset GPIO associated
with PHY. Drop the local ad-hoc code in favor of common code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 09039a2..48f9efc 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -764,6 +764,7 @@
 	bool "Renesas Ethernet AVB MAC"
 	depends on RCAR_64
 	select PHYLIB
+	select PHY_ETHERNET_ID
 	help
 	  This driver implements support for the Ethernet AVB block in
 	  Renesas M3 and H3 SoCs.