OsmoGSMTester: Update trial graph with current data

The osmo-bts-trx tgz doesn't exist anymore and it does not contain
osmo-trx, which comes in its own tgz.

Change-Id: Id803eca3791137b04bc24d195119d5c511fcfc49
diff --git a/doc/manuals/chapters/intro.adoc b/doc/manuals/chapters/intro.adoc
index 557c2f3..cc37e88 100644
--- a/doc/manuals/chapters/intro.adoc
+++ b/doc/manuals/chapters/intro.adoc
@@ -146,7 +146,7 @@
 	subgraph cluster_trial {
 		label = "Trial (binaries)"
 		sysmo [label="osmo-bts-sysmo.build-23.tgz\n(osmo-bts-sysmo\n+ deps\ncompiled for sysmoBTS)"]
-		trx [label="osmo-bts-trx.build-5.tgz\n(osmo-trx + osmo-bts-trx\n+ deps\ncompiled for main unit)"]
+		trx [label="osmo-bts.build-5.tgz\n(osmo-bts-octphy + osmo-bts-trx\n+ deps\ncompiled for main unit)"]
 		nitb [label="osmo-nitb.build-42.tgz\n(osmo-nitb\n+ deps\ncompiled for main unit)"]
 		checksums [label="checksums.md5"]