x86: garbage collect SMM programs

The non-module SMM programs were not being garbage collected
during linking. Do this so that one doesn't have to add dependencies
for unused functions in SMM.

TEST=Interrogated readelf -e smm.elf on both builds as well as diffed
     the symbol table. Runtime testing was not done.

Change-Id: I31991496d92191e540df6340c587eec09c7022b3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10219
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions