hw/input: Drop ADS7846 device

The ADS7846 touchscreen controller device was used only by
the XScale-based PDA machine types. Now that they have been
removed, this device is not used in the tree and can be
deleted.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20240903160751.4100218-3-peter.maydell@linaro.org
4 files changed