AGESA,binaryPI: Replace use of __PRE_RAM__

Change-Id: Id878fd33ec3d2de640d9a488058a805be3ccd223
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34997
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

src/vendorcode/amd/agesa/common/agesa-entry-cfg.h

@@ -2,7 +2,7 @@
 #define AGESA_ENTRY_CFG_H
 
 
-#if defined(__PRE_RAM__)
+#if ENV_ROMSTAGE
 
 #define AGESA_ENTRY_INIT_RESET		TRUE
 #define AGESA_ENTRY_INIT_EARLY		TRUE