soc/amd/common/block/gpio: use all-y in Makefile

Change-Id: Ib77e3d088cc07da4e43a63afb863bb90796f9a37
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48585
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/soc/amd/common/block/gpio_banks/Makefile.inc b/src/soc/amd/common/block/gpio_banks/Makefile.inc
index 5b738bd..616b589 100644
--- a/src/soc/amd/common/block/gpio_banks/Makefile.inc
+++ b/src/soc/amd/common/block/gpio_banks/Makefile.inc
@@ -1,10 +1,6 @@
 ifeq ($(CONFIG_SOC_AMD_COMMON_BLOCK_BANKED_GPIOS),y)
 
-bootblock-y += gpio.c
-verstage-y += gpio.c
-romstage-y += gpio.c
-postcar-y += gpio.c
-ramstage-y += gpio.c
+all-y += gpio.c
 smm-y += gpio.c
 
 endif # CONFIG_SOC_AMD_COMMON_BLOCK_BANKED_GPIOS