Fix an issue where button presses were missed in the touchscreen
example due to incorrect packet processing.
Previously, the driver waited to accumulate a batch of packets but only
processed the first one, effectively discarding the rest. The driver
now reads and processes packets one at a time to ensure no input
events are lost.
Also fixed typo: usbhost_xythreshold does not exist.
Signed-off-by: Lwazi Dube <lwazeh@gmail.com>
Lwazi Dube
2b0c59bcf4