tcgbios: Fix details in log entries

Fix two details of the logs:

- Set the field 'SpecErrata' to 2 as required by specs.
- Write the separator into the log entry's event field.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
diff --git a/src/tcgbios.c b/src/tcgbios.c
index 82894f5..4150aa0 100644
--- a/src/tcgbios.c
+++ b/src/tcgbios.c
@@ -274,7 +274,7 @@
         .hdr.platformClass = TPM_TCPA_ACPI_CLASS_CLIENT,
         .hdr.specVersionMinor = 0,
         .hdr.specVersionMajor = 2,
-        .hdr.specErrata = 0,
+        .hdr.specErrata = 2,
         .hdr.uintnSize = 2,
     };
 
@@ -1016,7 +1016,8 @@
     u32 pcrIndex;
     for (pcrIndex = 0; pcrIndex <= 7; pcrIndex++)
         tpm_add_measurement_to_log(pcrIndex, EV_SEPARATOR,
-                                   NULL, 0,
+                                   (const char *)evt_separator,
+                                   sizeof(evt_separator),
                                    evt_separator,
                                    sizeof(evt_separator));
 }