mb/starlabs/labtop: Rename some files

Rename `mainboard.c` to `smbios.c` as it only contains SMBIOS functions.
Rename `ramstage.c` to `mainboard.c` as it contains the mainboard chip
operations struct.

Change-Id: I9548ca72a7583de98f5b154e3381825bba00d5cf
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60211
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sean Rhodes <admin@starlabs.systems>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

0 files changed, 0 insertions, 0 deletions