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/DebugCommand.cpp b/cmds/lshal/DebugCommand.cpp
index 72958bd..ccf1ab1 100644
--- a/cmds/lshal/DebugCommand.cpp
+++ b/cmds/lshal/DebugCommand.cpp
@@ -28,7 +28,7 @@
 }
 
 std::string DebugCommand::getSimpleDescription() const {
-    return "Debug a specified HAL.";
+    return "Debug a specified HIDL HAL.";
 }
 
 Status DebugCommand::parseArgs(const Arg &arg) {
@@ -78,7 +78,7 @@
             "debug:\n"
             "    lshal debug [-E] <interface> [options [options [...]]] \n"
             "        Print debug information of a specified interface.\n"
-            "        -E: excludes debug output if HAL is actually a subclass.\n"
+            "        -E: excludes debug output if HIDL HAL is actually a subclass.\n"
             "        <interface>: Format is `android.hardware.foo@1.0::IFoo/default`.\n"
             "            If instance name is missing `default` is used.\n"
             "        options: space separated options to IBase::debug.\n";