hw/devices: Move TI touchscreen declarations into a new header

Since uWireSlave is only used in this new header, there is no
need to expose it via "qemu/typedefs.h".

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190412165416.7977-9-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/hw/input/tsc210x.c b/hw/input/tsc210x.c
index 4173161..f94cb46 100644
--- a/hw/input/tsc210x.c
+++ b/hw/input/tsc210x.c
@@ -24,8 +24,8 @@
 #include "audio/audio.h"
 #include "qemu/timer.h"
 #include "ui/console.h"
-#include "hw/arm/omap.h"	/* For I2SCodec and uWireSlave */
-#include "hw/devices.h"
+#include "hw/arm/omap.h"            /* For I2SCodec */
+#include "hw/input/tsc2xxx.h"
 
 #define TSC_DATA_REGISTERS_PAGE		0x0
 #define TSC_CONTROL_REGISTERS_PAGE	0x1