Input: tsc2005 - fix Kconfig indentation

Replace spaces with tab, so that the tsc2005 Kconfig entry matches the
other entries in drivers/input/touchscreen/Kconfig.
Signed-off-by: NSebastian Reichel <sre@kernel.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>