trivial: Kconfig: .ko is normally not included in module names

.ko is normally not included in Kconfig help, make it consistent.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 5eb8f21..452082f 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -531,7 +531,7 @@
 	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
 
 	  To compile this driver as a module, choose M here: the
-	  module will be called sbc8360.ko.
+	  module will be called sbc8360.
 
 	  Most people will say N.