Kconfig: acpi: Fix typo in comment.

The below fixes a typo I found in a comment.

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index de0e3df..7556913 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -374,7 +374,7 @@
 	depends on DEBUG_FS
 	default n
 	help
-	  This debug facility allows ACPI AML methods to me inserted and/or
+	  This debug facility allows ACPI AML methods to be inserted and/or
 	  replaced without rebooting the system. For details refer to:
 	  Documentation/acpi/method-customizing.txt.