arch/x86: Replace some uses of SMM_TSEG

No reason why the files could not be used with ASEG.
Attempts to use malloc() from ASEG would still fail,
though, due the lack of heap.

Change-Id: Idf470ae84eb34c442e833925510b08d5314e7638
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34126
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index f6d3f6d..f0738ee 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -117,7 +117,6 @@
 ramstage-y += memchr.c
 ramstage-y += memcmp.c
 ramstage-y += malloc.c
-smm-$(CONFIG_SMM_TSEG) += malloc.c
 ramstage-y += dimm_info_util.c
 ramstage-y += delay.c
 ramstage-y += fallback_boot.c
@@ -190,6 +189,7 @@
 ramstage-y += boot_device.c
 
 smm-y += boot_device.c
+smm-y += malloc.c
 smm-y += delay.c
 smm-y += fmap.c
 smm-y += cbfs.c memcmp.c