Update config files and docs to use systemd type triggers

Since we are now able to query the status of a running unit via systemd,
we no longer need to rely on a status file for output.

Change-Id: Ib48970cd7557768778cee73eb24180f2798626fe
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/bmc/config-bios.json.in b/bmc/config-bios.json.in
index 90dbff9..2267704 100644
--- a/bmc/config-bios.json.in
+++ b/bmc/config-bios.json.in
@@ -10,9 +10,8 @@
 			"unit": "@PREPARATION_BIOS_TARGET@"
 		},
 		"verification": {
-			"type": "fileSystemdVerify",
-			"unit": "@VERIFY_BIOS_TARGET@",
-			"path": "@BIOS_VERIFY_STATUS_FILENAME@"
+			"type": "systemd",
+			"unit": "@VERIFY_BIOS_TARGET@"
 		},
 		"update": {
 			"type": "systemd",