lshal: emphasize HIDL in docs/output

Some IMs floating about this recently. For now, lshal is still HIDL
specific and binder-facing tools work with AIDL HALs.

It remains to be seen if lshal will be re-adapted for AIDL in the
future, or if some of the ideas here will be transfered to dumpsys and
this binary ultimately deprecated.

Bug: N/A
Test: lshal/lshal --help
Change-Id: I39be9533b44c085a0688eb39171a0a40f88067b2
diff --git a/cmds/lshal/WaitCommand.cpp b/cmds/lshal/WaitCommand.cpp
index 65b41b9..437a66a 100644
--- a/cmds/lshal/WaitCommand.cpp
+++ b/cmds/lshal/WaitCommand.cpp
@@ -29,7 +29,7 @@
 }
 
 std::string WaitCommand::getSimpleDescription() const {
-    return "Wait for HAL to start if it is not already started.";
+    return "Wait for HIDL HAL to start if it is not already started.";
 }
 
 Status WaitCommand::parseArgs(const Arg &arg) {