lib/ts: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/ts_kmp.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/ts_bm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/ts_fsm.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Link: https://lkml.kernel.org/r/20240531-lib-ts-v1-1-03d7f3546c49@quicinc.comSigned-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

lib/ts_bm.c

@@ -216,6 +216,7 @@ static void __exit exit_bm(void)
 	textsearch_unregister(&bm_ops);
 }
 
+MODULE_DESCRIPTION("Boyer-Moore text search implementation");
 MODULE_LICENSE("GPL");
 
 module_init(init_bm);

lib/ts_fsm.c

@@ -331,6 +331,7 @@ static void __exit exit_fsm(void)
 	textsearch_unregister(&fsm_ops);
 }
 
+MODULE_DESCRIPTION("naive finite state machine text search");
 MODULE_LICENSE("GPL");
 
 module_init(init_fsm);

lib/ts_kmp.c

@@ -147,6 +147,7 @@ static void __exit exit_kmp(void)
 	textsearch_unregister(&kmp_ops);
 }
 
+MODULE_DESCRIPTION("Knuth-Morris-Pratt text search implementation");
 MODULE_LICENSE("GPL");
 
 module_init(init_kmp);