mosys: Remove smbios parameter from cros_config_read_sku_info_struct.

- Instead, call smbios_sysinfo_get_name again. This allows removing the
x86-only parameter; there is some small overhead to calling the function
again, but it allows the signature to be cleaner.

BUG=chromium:894995
TEST=Manually ran CrosConfig tast test for coral, caroline, elm, and
scarlet.

Change-Id: I55d93abef8287591e1929bc0dd93a680f594c295
Reviewed-on: https://chromium-review.googlesource.com/1448396
Commit-Ready: Andrew Lamb <andrewlamb@chromium.org>
Tested-by: Andrew Lamb <andrewlamb@chromium.org>
Reviewed-by: Gregory Meinke <gmeinke@chromium.org>
Reviewed-by: C Shapiro <shapiroc@chromium.org>
3 files changed