sb/amd/pi/hudson: Enable use of common GPIO API

The code in soc/amd/common has an implementation of
GPIO register space that is compatible with the hardware
sb/amd/pi/hudson supports.

Change-Id: I86ae40a3cdf335263d7e9e3dcfdd588947cdd9b1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42733
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/southbridge/amd/pi/hudson/Kconfig b/src/southbridge/amd/pi/hudson/Kconfig
index c87d7a0..6280f3a 100644
--- a/src/southbridge/amd/pi/hudson/Kconfig
+++ b/src/southbridge/amd/pi/hudson/Kconfig
@@ -19,6 +19,7 @@
 	select HAVE_CF9_RESET_PREPARE
 	select SOC_AMD_COMMON
 	select SOC_AMD_COMMON_BLOCK_ACPIMMIO
+	select SOC_AMD_COMMON_BLOCK_BANKED_GPIOS
 	select SOC_AMD_COMMON_BLOCK_PCI_MMCONF
 
 config EHCI_BAR