Revert "ANDROID: GKI: Disable KUnit built-in testing"

Revert submission 2087485-kunit-gki-module-enable

Signed-off-by: Betty Zhou <bettyzhou@google.com>

Reason for revert: Reopen KUnit build-in testing

Reverted changes: /q/submissionid:2087485-kunit-gki-module-enable

Change-Id: Ib869473ce39bd298e40b2678f7d16595367d3663

init/main.c

@@ -112,6 +112,8 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/initcall.h>
 
+#include <kunit/test.h>
+
 static int kernel_init(void *);
 
 /*
@@ -1552,6 +1554,8 @@ static noinline void __init kernel_init_freeable(void)
 
 	do_basic_setup();
 
+	kunit_run_all_tests();
+
 	wait_for_initramfs();
 	console_on_rootfs();