lsefisystab: Define SMBIOS3 entry point structures for EFI

This adds the GUID and includes it in lsefisystab output.

Signed-off-by: David Michael <fedora.dm0@gmail.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

grub-core/commands/efi/lsefisystab.c

@@ -48,6 +48,7 @@ static const struct guid_mapping guid_mappings[] =
     { GRUB_EFI_MPS_TABLE_GUID, "MPS"},
     { GRUB_EFI_SAL_TABLE_GUID, "SAL"},
     { GRUB_EFI_SMBIOS_TABLE_GUID, "SMBIOS"},
+    { GRUB_EFI_SMBIOS3_TABLE_GUID, "SMBIOS3"},
     { GRUB_EFI_SYSTEM_RESOURCE_TABLE_GUID, "SYSTEM RESOURCE TABLE"},
     { GRUB_EFI_TIANO_CUSTOM_DECOMPRESS_GUID, "TIANO CUSTOM DECOMPRESS"},
     { GRUB_EFI_TSC_FREQUENCY_GUID, "TSC FREQUENCY"},