LAPIC setup is required to set virtualwire mode for legacy interrupts.
This was omitted when stoneyridge was changed to use the common mp_init.
BUG=b:72351388
TEST=Verify keyboard now works in SeaBIOS
Change-Id: I648d8b5b5a3744a5781446c7cb72934a071f9a72
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/23718
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>