arch/x86/Makefile: include dependencies for romcc bootblock

We already explicitly generated a dependencies file for the romcc
bootblock. Though, as it has its own rule and isn't registered
to any of our object-file classes, the dependencies file wasn't
included automatically.

Change-Id: I441cf229312dff82f377dcb594939fb85c441eed
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/28442
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed