s390/lib: Add missing MODULE_DESCRIPTION() macros

With ARCH=s390, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/s390/lib/test_kprobes_s390.o
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/s390/lib/test_unwind.o
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/s390/lib/test_modules.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Acked-by: Heiko Carstens <[email protected]>
Signed-off-by: Jeff Johnson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vasily Gorbik <[email protected]>
Signed-off-by: Alexander Gordeev <[email protected]>

Author: Jeff Johnson

arch/s390/lib/test_kprobes.c

@@ -72,4 +72,5 @@ static struct kunit_suite kprobes_test_suite = {
 
 kunit_test_suites(&kprobes_test_suite);
 
+MODULE_DESCRIPTION("KUnit tests for kprobes");
 MODULE_LICENSE("GPL");

arch/s390/lib/test_modules.c

@@ -29,4 +29,5 @@ static struct kunit_suite modules_test_suite = {
 
 kunit_test_suites(&modules_test_suite);
 
+MODULE_DESCRIPTION("KUnit test that modules with many relocations are loaded properly");
 MODULE_LICENSE("GPL");

arch/s390/lib/test_unwind.c

@@ -519,4 +519,5 @@ static struct kunit_suite test_unwind_suite = {
 
 kunit_test_suites(&test_unwind_suite);
 
+MODULE_DESCRIPTION("KUnit test for unwind_for_each_frame");
 MODULE_LICENSE("GPL");