Makefile.mk: Also add -libs to bootblock when !SEPARATE_ROMSTAGE

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I18bf67cae7af90a92a030e552af6dc6b134a8357
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79575
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
diff --git a/Makefile.mk b/Makefile.mk
index 3f39a6e..d7110a9 100644
--- a/Makefile.mk
+++ b/Makefile.mk
@@ -1307,6 +1307,7 @@
 endif
 else # CONFIG_SEPARATE_ROMSTAGE
 postinclude-hooks += $$(eval bootblock-srcs += $$(romstage-srcs))
+postinclude-hooks += $$(eval bootblock-libs += $$(romstage-libs))
 endif
 
 cbfs-files-$(CONFIG_HAVE_RAMSTAGE) += $(CONFIG_CBFS_PREFIX)/ramstage