Input: Touchscreen: Make TSC2005 depend on SPI

Make Kconfig reflect reality.
Signed-off-by: Daniel Stone <daniel.stone@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/input/touchscreen/Kconfig

@@ -219,6 +219,7 @@ config TOUCHSCREEN_ATMEL_TSADCC
 
 config TOUCHSCREEN_TSC2005
 	tristate "TSC2005 touchscreen support"
+	depends on SPI_MASTER
 	help
 	  Say Y here for if you are using the touchscreen features of TSC2005.