synaptics: Clean up pending completion if touch is not suspended yet

Let the interrupt handler clean up any pending completion if
syna_dev_suspend() is not run yet.

Bug: 252698616
Test: Add a debug patch that sends a command when the device is going
      to sleep but syna_dev_suspend() is not run yet and confirm
      the cmd_completion is cleaned up.

Signed-off-by: davidycchen <davidycchen@google.com>
Change-Id: If242c6aee7978194de25661138ade9a8a3842e06
2 files changed