ARM: socfpga: Remove adhoc ethernet reset and configuration

Remove ad-hoc ethernet syscon registers configuration and reset support.
Reset is now handled by the reset framework and the syscon registers are
set in the dwmac_socfpga.c driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
diff --git a/arch/arm/mach-socfpga/Kconfig b/arch/arm/mach-socfpga/Kconfig
index 63ce32f..80be1dc 100644
--- a/arch/arm/mach-socfpga/Kconfig
+++ b/arch/arm/mach-socfpga/Kconfig
@@ -14,6 +14,11 @@
 	select DM_I2C
 	select DM_RESET
 	select SPL_DM_RESET if SPL
+	select REGMAP
+	select SPL_REGMAP if SPL
+	select SYSCON
+	select SPL_SYSCON if SPL
+	select ETH_DESIGNWARE_SOCFPGA
 
 config TARGET_SOCFPGA_CYCLONE5
 	bool