input: Clean up input devices in multiple drivers

* Only accept multi-touchscreen for input.
* MSM Hotplug was accepting any kind of input,
which includes sensors and thus can cause a lot
of jank in the input boost code.

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
ghost: Set the min and max frequencies

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>