Add defaults for the most needed keyboard/mouse options.

drivers/input/Kconfig

@@ -28,6 +28,7 @@ comment "Userland interfaces"
 
 config INPUT_MOUSEDEV
 	tristate "Mouse interface"
+	default y
 	depends on INPUT
 	---help---
 	  Say Y here if you want your mouse to be accessible as char devices
@@ -45,6 +46,7 @@ config INPUT_MOUSEDEV
 
 config INPUT_MOUSEDEV_PSAUX
 	bool "Provide legacy /dev/psaux device"
+	default y
 	depends on INPUT_MOUSEDEV
 
 config INPUT_MOUSEDEV_SCREEN_X

drivers/input/keyboard/Kconfig

@@ -3,6 +3,7 @@
 #
 config INPUT_KEYBOARD
 	bool "Keyboards"
+	default y
 	depends on INPUT
 	help
 	  Say Y here, and a list of supported keyboards will be displayed.
@@ -12,6 +13,7 @@ config INPUT_KEYBOARD
 
 config KEYBOARD_ATKBD
 	tristate "AT keyboard support"
+	default y
 	depends on INPUT && INPUT_KEYBOARD && SERIO
 	---help---
 	  Say Y here if you want to use the standard AT keyboard. Usually

drivers/input/mouse/Kconfig

@@ -3,6 +3,7 @@
 #
 config INPUT_MOUSE
 	bool "Mice"
+	default y
 	depends on INPUT
 	help
 	  Say Y here, and a list of supported mice will be displayed.
@@ -12,6 +13,7 @@ config INPUT_MOUSE
 
 config MOUSE_PS2
 	tristate "PS/2 mouse"
+	default y
 	depends on INPUT && INPUT_MOUSE && SERIO
 	---help---
 	  Say Y here if you have a PS/2 mouse connected to your system. This

drivers/input/serio/Kconfig

@@ -3,6 +3,7 @@
 #
 config SERIO
 	tristate "Serial i/o support"
+	default y
 	---help---
 	  Say Yes here if you have any input device that uses serial I/O to
 	  communicate with the system. This includes the 
@@ -19,6 +20,7 @@ config SERIO
 
 config SERIO_I8042
 	tristate "i8042 PC Keyboard controller"
+	default y
 	depends on SERIO
 	---help---
 	  i8042 is the chip over which the standard AT keyboard and PS/2
@@ -34,6 +36,7 @@ config SERIO_I8042
 
 config SERIO_SERPORT
 	tristate "Serial port line discipline"
+	default y
 	depends on SERIO
 	---help---
 	  Say Y here if you plan to use an input device (mouse, joystick,