ksmbd-tools: add package version test

The generic package version check invokes ksmbd.tools directly, but the
multicall binary rejects that basename and fails the test.

Check the version through ksmbd.mountd and skip subpackages without
versioned executables.

Signed-off-by: Andrea Pesaresi <andreapesaresi82@gmail.com>
(cherry picked from commit 4ce49b0a9d)
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

net/ksmbd-tools/test-version.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# shellcheck shell=busybox
+
+case "$PKG_NAME" in
+ksmbd-server)
+	/usr/sbin/ksmbd.mountd -V 2>&1 | grep -F "$PKG_VERSION"
+	;;
+
+ksmbd-avahi-service|\
+ksmbd-hotplug)
+	exit 0
+	;;
+
+*)
+	echo "Untested package: $PKG_NAME" >&2
+	exit 1
+	;;
+esac