southbridge/intel/lynxpoint: add hard_reset to postcar

This fixes the following failure on certain google/peppy configs:

    build/postcar/lib/reset.o: In function `__hard_reset':
    /home/pgeorgi/coreboot/src/lib/reset.c:24: undefined reference to `do_hard_reset'

Change-Id: I448a8702a30108f1fc82179a766cbdd209336df7
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/26986
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed