x86/olpc: Fix olpc-xo1-sci.c build errors

Fix build errors when CONFIG_INPUT=m.  This is not pretty, but
all of the OLPC kconfig options are bool instead of tristate.

  arch/x86/built-in.o: In function `send_lid_state':
    olpc-xo1-sci.c:(.text+0x1d323): undefined reference to `input_event'
    olpc-xo1-sci.c:(.text+0x1d338): undefined reference to `input_event'
  ...

In the long run, fixing this driver kconfig to be tristate
instead of bool would be a very good change.

Signed-off-by: Randy Dunlap <[email protected]>
Cc: Andres Salomon <[email protected]>
Cc: Chris Ball <[email protected]>
Cc: Jon Nettleton <[email protected]>
Cc: Daniel Drake <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>

arch/x86/Kconfig

@@ -2138,6 +2138,7 @@ config OLPC_XO1_RTC
 config OLPC_XO1_SCI
 	bool "OLPC XO-1 SCI extras"
 	depends on OLPC && OLPC_XO1_PM
+	depends on INPUT=y
 	select POWER_SUPPLY
 	select GPIO_CS5535
 	select MFD_CORE