Input: lifebook - add CONFIG_DMI dependency

Lifebook protocol can only be activated if we find known DMI signature.
It is useles without DMI.

Reported-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 3feeb3a..c714ca2 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -70,7 +70,7 @@
 config MOUSE_PS2_LIFEBOOK
 	bool "Fujitsu Lifebook PS/2 mouse protocol extension" if EMBEDDED
 	default y
-	depends on MOUSE_PS2 && X86
+	depends on MOUSE_PS2 && X86 && DMI
 	help
 	  Say Y here if you have a Fujitsu B-series Lifebook PS/2
 	  TouchScreen connected to your system.
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index 2e6bdfe..6d7aa10 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -44,7 +44,6 @@
 }
 
 static const struct dmi_system_id __initconst lifebook_dmi_table[] = {
-#if defined(CONFIG_DMI) && defined(CONFIG_X86)
 	{
 		/* FLORA-ie 55mi */
 		.matches = {
@@ -118,7 +117,6 @@
 		},
 	},
 	{ }
-#endif
 };
 
 void __init lifebook_module_init(void)