commands/efi/lsefisystab: Add short text for EFI_RT_PROPERTIES_TABLE_GUID

commands/efi/lsefisystab: Add short text for EFI_RT_PROPERTIES_TABLE_GUID

UEFI specification 2.8 errata B introduced the EFI_RT_PROPERTIES_TABLE
describing the services available at runtime.

The lsefisystab command is used to display installed EFI configuration
tables. Currently it only shows the GUID but not a short text for the
new table.

Provide a short text for the EFI_RT_PROPERTIES_TABLE_GUID.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>