platform/x86: dell-smbios: Move request functions for reuse

Move the dell_send_request and dell_fill_request symbols into smbios-base
so that they can be used in multiple modules.

Signed-off-by: Lyndon Sanche <lsanche@lyndeno.ca>
Link: https://lore.kernel.org/r/20240529174843.13226-3-lsanche@lyndeno.ca


Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>