feat(drtm): update DLME data header with actual Event Log size

The definition of `dlme_tpm_log_size` has been revised to represent
the actual Event Log data size instead of the fixed minimum of 64KB.
This change will be reflected in the upcoming DRTM specification
update.

Note: This change requires a corresponding update to the ACS DRTM
app in CI.

Change-Id: I967b5a372b283abd46409685d7266ffa60c142b0
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
diff --git a/services/std_svc/drtm/drtm_main.c b/services/std_svc/drtm/drtm_main.c
index c302863..8f71571 100644
--- a/services/std_svc/drtm/drtm_main.c
+++ b/services/std_svc/drtm/drtm_main.c
@@ -293,8 +293,8 @@
 	/* Prepare DRTM event log for DLME. */
 	drtm_serialise_event_log(dlme_data_cursor, &serialised_bytes_actual);
 	assert(serialised_bytes_actual <= ARM_DRTM_MIN_EVENT_LOG_SIZE);
-	dlme_data_hdr->dlme_tpm_log_size = ARM_DRTM_MIN_EVENT_LOG_SIZE;
-	dlme_data_cursor +=  dlme_data_hdr->dlme_tpm_log_size;
+	dlme_data_hdr->dlme_tpm_log_size = serialised_bytes_actual;
+	dlme_data_cursor +=  serialised_bytes_actual;
 
 	/*
 	 * TODO: Prepare the TCB hashes for DLME, currently its size