ktest: Add TEST_TYPE install option

In testing one of my boxes, I found that I only wanted to build and
install the kernel. I wanted to manually reboot the box and test it.
Adding a TEST_TYPE option "install" allows this to happen.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

tools/testing/ktest/ktest.pl

@@ -2929,6 +2929,13 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
 	build $build_type or next;
     }
 
+    if ($test_type eq "install") {
+	get_version;
+	install;
+	success $i;
+	next;
+    }
+
     if ($test_type ne "build") {
 	my $failed = 0;
 	start_monitor_and_boot or $failed = 1;

tools/testing/ktest/sample.conf

@@ -254,7 +254,8 @@
 # The default test type (default test)
 # The test types may be:
 #   build   - only build the kernel, do nothing else
-#   boot - build and boot the kernel
+#   install - build and install, but do nothing else (does not reboot)
+#   boot    - build, install, and boot the kernel
 #   test    - build, boot and if TEST is set, run the test script
 #          (If TEST is not set, it defaults back to boot)
 #   bisect - Perform a bisect on the kernel (see BISECT_TYPE below)